fix(android): lint on the predictive-back opt-in and the shared-art modifier

enableOnBackInvokedCallback only exists from API 33 and the app runs from 31, which lint reports as UnusedAttribute; tools:targetApi says that is intended, since older releases ignore it. sharedArt becomes an extension on Modifier, as Compose lint asks of modifier factories.
fix(android): pin the version in the settings screenshot
2026-11-04 08:56:59 +01:00 · 2026-10-03 14:53:09 +02:00 · 2026-10-03 14:24:32 +02:00 · 2026-10-03 13:35:36 +02:00 · 2026-10-03 13:34:28 +02:00 · 2026-10-03 13:34:04 +02:00
112 changed files with 7312 additions and 1850 deletions
@@ -3,7 +3,15 @@ name: Android
 on:
  push:
    branches: [main]
-    tags: ['v*']
+  # A `v*` tag reaches this workflow through release.yml, which calls it and
+  # publishes the signed APK. Triggering on the tag here as well would build
+  # the release twice.
+  workflow_call:
+    inputs:
+      signed_release:
+        required: false
+        default: false
+        type: boolean
  pull_request:
    paths:
      - 'android/**'
@@ -74,14 +82,23 @@ jobs:
          distribution: temurin
          java-version: '17'

+      # The action's default `packages` includes `tools`, which cmdline-tools
+      # 16.0 no longer offers, so sdkmanager exits 1. The SDK pieces this
+      # build needs are installed explicitly below.
      - uses: android-actions/setup-android@v3
+        with:
+          packages: platform-tools
+          log-accepted-android-sdk-licenses: false

      - name: Install native build prerequisites
        run: |
          sudo apt-get update
          sudo apt-get install --no-install-recommends \
-            autoconf automake build-essential cmake curl git gperf libtool \
-            meson nasm ninja-build pkg-config python3 unzip wget xz-utils yasm
+            autoconf automake build-essential cmake curl git gperf libdbus-1-dev \
+            libtool nasm ninja-build pkg-config python3 unzip wget xz-utils yasm
+          # Not apt's meson: noble ships 1.3.2, and the fontconfig that the pinned
+          # mpv-android revision builds requires >= 1.11.
+          pipx install meson==1.12.1

      - name: Install Android SDK and NDK
        run: >-
@@ -95,7 +112,33 @@ jobs:
          toolchain: '1.96'
          targets: aarch64-linux-android,x86_64-linux-android

+      # One cache for both jobs: the signed build compiles the same crates for
+      # the same targets. Saved on failure too, so a run that breaks late does
+      # not throw away everything it compiled before the break.
      - uses: Swatinem/rust-cache@v2.9.1
+        with:
+          shared-key: android
+          cache-on-failure: true
+
+      # libmpv and its dependency tree are the slowest part of the build, and
+      # depend only on the pinned revision and the build script, which stamps
+      # its output with both and skips the build when the stamp matches. Built
+      # and saved in steps of its own, so a later failure in Gradle does not
+      # discard it the way a post-job cache save would.
+      - id: libmpv
+        uses: actions/cache/restore@v6
+        with:
+          path: android/app/build/generated/mpv
+          key: libmpv-${{ hashFiles('scripts/build-libmpv-android.sh') }}
+
+      - name: Build libmpv
+        run: bash scripts/build-libmpv-android.sh
+
+      - if: steps.libmpv.outputs.cache-hit != 'true'
+        uses: actions/cache/save@v6
+        with:
+          path: android/app/build/generated/mpv
+          key: ${{ steps.libmpv.outputs.cache-primary-key }}

      - uses: gradle/actions/setup-gradle@v4
        with:
@@ -126,7 +169,7 @@ jobs:

  signed-release:
    name: Signed release
-    if: false
+    if: startsWith(github.ref, 'refs/tags/v') || inputs.signed_release
    needs: build
    runs-on: ubuntu-24.04
    env:
@@ -141,14 +184,23 @@ jobs:
          distribution: temurin
          java-version: '17'

+      # The action's default `packages` includes `tools`, which cmdline-tools
+      # 16.0 no longer offers, so sdkmanager exits 1. The SDK pieces this
+      # build needs are installed explicitly below.
      - uses: android-actions/setup-android@v3
+        with:
+          packages: platform-tools
+          log-accepted-android-sdk-licenses: false

      - name: Install native build prerequisites
        run: |
          sudo apt-get update
          sudo apt-get install --no-install-recommends \
-            autoconf automake build-essential cmake curl git gperf libtool \
-            meson nasm ninja-build pkg-config python3 unzip wget xz-utils yasm
+            autoconf automake build-essential cmake curl git gperf libdbus-1-dev \
+            libtool nasm ninja-build pkg-config python3 unzip wget xz-utils yasm
+          # Not apt's meson: noble ships 1.3.2, and the fontconfig that the pinned
+          # mpv-android revision builds requires >= 1.11.
+          pipx install meson==1.12.1

      - name: Install Android SDK and NDK
        run: >-
@@ -162,7 +214,33 @@ jobs:
          toolchain: '1.96'
          targets: aarch64-linux-android,x86_64-linux-android

+      # One cache for both jobs: the signed build compiles the same crates for
+      # the same targets. Saved on failure too, so a run that breaks late does
+      # not throw away everything it compiled before the break.
      - uses: Swatinem/rust-cache@v2.9.1
+        with:
+          shared-key: android
+          cache-on-failure: true
+
+      # libmpv and its dependency tree are the slowest part of the build, and
+      # depend only on the pinned revision and the build script, which stamps
+      # its output with both and skips the build when the stamp matches. Built
+      # and saved in steps of its own, so a later failure in Gradle does not
+      # discard it the way a post-job cache save would.
+      - id: libmpv
+        uses: actions/cache/restore@v6
+        with:
+          path: android/app/build/generated/mpv
+          key: libmpv-${{ hashFiles('scripts/build-libmpv-android.sh') }}
+
+      - name: Build libmpv
+        run: bash scripts/build-libmpv-android.sh
+
+      - if: steps.libmpv.outputs.cache-hit != 'true'
+        uses: actions/cache/save@v6
+        with:
+          path: android/app/build/generated/mpv
+          key: ${{ steps.libmpv.outputs.cache-primary-key }}

      - uses: gradle/actions/setup-gradle@v4
        with:
@@ -188,10 +266,24 @@ jobs:
      - name: Build signed APK and AAB
        run: bash scripts/build-android.sh signed

+      # The APK bundles a GPL libmpv, so its corresponding source ships next to
+      # it. The AAB is for Play only and stays out of the GitHub release.
+      - name: Stage release files
+        run: |
+          version="$(sed -n 's/^version = "\([^"]*\)"/\1/p' Cargo.toml | head -n1)"
+          mkdir -p dist/android
+          cp android/app/build/outputs/apk/release/app-release.apk \
+            "dist/android/proton-stream-$version-android.apk"
+          cp android/app/build/generated/mpv/mpv-android-source-*.tar.gz dist/android/
+
      - uses: actions/upload-artifact@v7
        with:
-          name: android-signed
-          path: |
-            android/app/build/outputs/apk/release/*.apk
-            android/app/build/outputs/bundle/release/*.aab
+          name: android
+          path: dist/android/*
+          if-no-files-found: error
+
+      - uses: actions/upload-artifact@v7
+        with:
+          name: android-bundle
+          path: android/app/build/outputs/bundle/release/*.aab
          if-no-files-found: error
@@ -20,9 +20,6 @@ permissions:

 env:
  CARGO_TERM_COLOR: always
-  # Android remains a workflow artifact only until the native libmpv adapter,
-  # corresponding-source bundle, and on-device verification are complete.
-  ANDROID_PUBLIC_RELEASE_ENABLED: 'false'

 jobs:
  verify:
@@ -60,11 +57,6 @@ jobs:
          ! grep -q '^\[patch\.crates-io\]' Cargo.toml ||
            { echo "::error::Cargo.toml carries [patch.crates-io]; releases build against the registry"; exit 1; }

-      - name: Android publication remains blocked
-        run: |
-          test "$ANDROID_PUBLIC_RELEASE_ENABLED" = false
-          echo "Android APK/AAB publication is blocked until native playback is release-ready."
-
  linux:
    name: Linux artifacts
    needs: verify
@@ -148,25 +140,38 @@ jobs:
            dist/*.msi
          if-no-files-found: error

+  # The signed APK plus the corresponding source of the libmpv it bundles. The
+  # keystore and its passwords come from the ANDROID_RELEASE_* secrets.
+  android:
+    name: Android
+    needs: verify
+    uses: ./.github/workflows/android.yml
+    with:
+      signed_release: true
+    secrets: inherit
+
  publish:
-    name: Publish desktop artifacts
+    name: Publish
    if: startsWith(github.ref, 'refs/tags/')
-    needs: [linux, windows]
+    needs: [linux, windows, android]
    runs-on: ubuntu-24.04
    permissions:
      contents: write
    steps:
+      # By name: the Android workflow also uploads the AAB, which is for Play
+      # and does not belong on the release.
      - uses: actions/download-artifact@v8
        with:
+          name: linux
+          path: artifacts
+      - uses: actions/download-artifact@v8
+        with:
+          name: windows
+          path: artifacts
+      - uses: actions/download-artifact@v8
+        with:
+          name: android
          path: artifacts
-          merge-multiple: true
-
-      - name: Refuse mobile artifacts while Android publishing is blocked
-        run: |
-          if find artifacts -type f \( -name '*.apk' -o -name '*.aab' \) -print -quit | grep -q .; then
-            echo "::error::Android publishing is disabled while native playback remains incomplete"
-            exit 1
-          fi

      - name: Checksums
        run: |
@@ -20,3 +20,9 @@
 /packaging/pkg/
 /packaging/src/
 /packaging/*.pkg.tar.zst
+
+# iOS generated state: XcodeGen owns the project and the Info.plist, and
+# scripts/build-ios.sh writes the bindings and DerivedData under ios/build.
+/ios/build/
+/ios/*.xcodeproj/
+/ios/ProtonStream/Info.plist
@@ -119,12 +119,6 @@ dependencies = [
 "memchr",
 ]

-[[package]]
-name = "allocator-api2"
-version = "0.2.21"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "683d7910e743518b0e34f1186f92494becacb047c7b6bf616c96772180fef923"
-
 [[package]]
 name = "android-activity"
 version = "0.6.1"
@@ -1767,6 +1761,15 @@ dependencies = [
 "unicode-segmentation",
 ]

+[[package]]
+name = "egui-phosphor"
+version = "0.13.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "249826f9529c1757d71dbbb3a22ec101b21110ab663c45fb771c2b86121379e4"
+dependencies = [
+ "egui",
+]
+
 [[package]]
 name = "egui-wgpu"
 version = "0.35.0"
@@ -2061,12 +2064,6 @@ version = "1.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3f9eec918d3f24069decb9af1554cad7c880e2da24a9afd88aca000531ab82c1"

-[[package]]
-name = "foldhash"
-version = "0.1.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d9c4f5dac5e15c24eb999c26181a6ca40b39fe946cbe4c263c7209467bc83af2"
-
 [[package]]
 name = "foldhash"
 version = "0.2.0"
@@ -2352,7 +2349,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d99fc21d493812643aae86d53b7bbd02f376434a90317e8a790bc209fdd6605e"
 dependencies = [
 "bytemuck",
- "foldhash 0.2.0",
+ "foldhash",
 "hashbrown 0.17.1",
 "log",
 "peniko",
@@ -2528,24 +2525,13 @@ dependencies = [
 "ahash",
 ]

-[[package]]
-name = "hashbrown"
-version = "0.15.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9229cfe53dfd69f0609a49f65461bd93001ea1ef889cd5529dd176593f5338a1"
-dependencies = [
- "allocator-api2",
- "equivalent",
- "foldhash 0.1.5",
-]
-
 [[package]]
 name = "hashbrown"
 version = "0.16.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "841d1cc9bed7f9236f321df977030373f4a4163ae1a7dbfe1a51a2c1a51d9100"
 dependencies = [
- "foldhash 0.2.0",
+ "foldhash",
 ]

 [[package]]
@@ -2554,7 +2540,7 @@ version = "0.17.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ed5909b6e89a2db4456e54cd5f673791d7eca6732202bbf2a9cc504fe2f9b84a"
 dependencies = [
- "foldhash 0.2.0",
+ "foldhash",
 ]

 [[package]]
@@ -3243,11 +3229,11 @@ checksum = "0ceec5bc11778974d1bcb055b18002eba7f4b3518b6a0081b3af5f21666da9ad"

 [[package]]
 name = "lru"
-version = "0.12.5"
+version = "0.18.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "234cf4f4a04dc1f57e24b96cc0cd600cf2af460d4161ac5ecdd0af8e1f3b2a38"
+checksum = "ef9ac18847474e638e3702b76c65d4eb93428471a74778ef0f1be711717f89b5"
 dependencies = [
- "hashbrown 0.15.5",
+ "hashbrown 0.17.1",
 ]

 [[package]]
@@ -4313,12 +4299,12 @@ checksum = "3d595e54a326bc53c1c197b32d295e14b169e3cfeaa8dc82b529f947fba6bcf5"

 [[package]]
 name = "proton-drive-rs"
-version = "0.6.3"
+version = "0.7.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "11faa95cf40bd87d4d48435cdf9b16fff5f14caf45b3a565a941fd4a6e18cefe"
+checksum = "d6ce113d234474821d34787436ee80e1458e3d8a8f97212219615ed315eb70be"
 dependencies = [
 "async-trait",
- "base64 0.22.1",
+ "base64 0.23.0",
 "bytes",
 "futures",
 "getrandom 0.4.3",
@@ -4340,13 +4326,13 @@ dependencies = [

 [[package]]
 name = "proton-sdk"
-version = "0.6.3"
+version = "0.7.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7de99acbd776f7bad5e1e1f3c40d7df3e4ef7411984d02370008ba1ff270a047"
+checksum = "2a33c67df9694f90ce60e5b34984275956244138511b4640ca0d100e1dac8b3d"
 dependencies = [
 "aes-gcm 0.11.0",
 "async-trait",
- "base64 0.22.1",
+ "base64 0.23.0",
 "bcrypt",
 "bytes",
 "chrono",
@@ -4373,7 +4359,7 @@ dependencies = [

 [[package]]
 name = "pstr-android"
-version = "0.4.2"
+version = "1.0.0"
 dependencies = [
 "android_logger",
 "jni 0.21.1",
@@ -4392,13 +4378,15 @@ dependencies = [

 [[package]]
 name = "pstr-app"
-version = "0.4.2"
+version = "1.0.0"
 dependencies = [
 "anyhow",
+ "chrono",
 "dbus",
 "directories",
 "eframe",
 "egui",
+ "egui-phosphor",
 "futures",
 "image",
 "parking_lot",
@@ -4410,7 +4398,9 @@ dependencies = [
 "serde",
 "serde_json",
 "sha2 0.10.9",
+ "skrifa",
 "souvlaki",
+ "tauri-winrt-notification",
 "tokio",
 "tracing",
 "tracing-subscriber",
@@ -4419,7 +4409,7 @@ dependencies = [

 [[package]]
 name = "pstr-cli"
-version = "0.4.2"
+version = "1.0.0"
 dependencies = [
 "anyhow",
 "clap",
@@ -4437,7 +4427,7 @@ dependencies = [

 [[package]]
 name = "pstr-core"
-version = "0.4.2"
+version = "1.0.0"
 dependencies = [
 "directories",
 "futures",
@@ -4455,7 +4445,7 @@ dependencies = [

 [[package]]
 name = "pstr-meta"
-version = "0.4.2"
+version = "1.0.0"
 dependencies = [
 "pstr-core",
 "reqwest",
@@ -4468,7 +4458,7 @@ dependencies = [

 [[package]]
 name = "pstr-player"
-version = "0.4.2"
+version = "1.0.0"
 dependencies = [
 "async-trait",
 "libloading",
@@ -4483,7 +4473,7 @@ dependencies = [

 [[package]]
 name = "pstr-stream"
-version = "0.4.2"
+version = "1.0.0"
 dependencies = [
 "async-trait",
 "futures",
@@ -5533,7 +5523,7 @@ dependencies = [
 "dispatch",
 "objc",
 "thiserror 1.0.69",
- "windows",
+ "windows 0.44.0",
 ]

 [[package]]
@@ -5624,6 +5614,17 @@ version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "55937e1799185b12863d447f42597ed69d9928686b8d88a1df17376a097d8369"

+[[package]]
+name = "tauri-winrt-notification"
+version = "0.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f37a6c354fd28fc9e322ed9bd47e3959576dad28c9d58ea1cf888cce1c7ccb36"
+dependencies = [
+ "thiserror 2.0.19",
+ "windows 0.62.2",
+ "windows-version",
+]
+
 [[package]]
 name = "tempfile"
 version = "3.27.0"
@@ -6684,6 +6685,27 @@ dependencies = [
 "windows-targets 0.42.2",
 ]

+[[package]]
+name = "windows"
+version = "0.62.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "527fadee13e0c05939a6a05d5bd6eec6cd2e3dbd648b9f8e447c6518133d8580"
+dependencies = [
+ "windows-collections",
+ "windows-core",
+ "windows-future",
+ "windows-numerics",
+]
+
+[[package]]
+name = "windows-collections"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "23b2d95af1a8a14a3c7367e1ed4fc9c20e0a26e79551b1454d72583c97cc6610"
+dependencies = [
+ "windows-core",
+]
+
 [[package]]
 name = "windows-core"
 version = "0.62.2"
@@ -6697,6 +6719,17 @@ dependencies = [
 "windows-strings",
 ]

+[[package]]
+name = "windows-future"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e1d6f90251fe18a279739e78025bd6ddc52a7e22f921070ccdc67dde84c605cb"
+dependencies = [
+ "windows-core",
+ "windows-link",
+ "windows-threading",
+]
+
 [[package]]
 name = "windows-implement"
 version = "0.60.2"
@@ -6725,6 +6758,16 @@ version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f0805222e57f7521d6a62e36fa9163bc891acd422f971defe97d64e70d0a4fe5"

+[[package]]
+name = "windows-numerics"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6e2e40844ac143cdb44aead537bbf727de9b044e107a0f1220392177d15b0f26"
+dependencies = [
+ "windows-core",
+ "windows-link",
+]
+
 [[package]]
 name = "windows-result"
 version = "0.4.1"
@@ -6860,6 +6903,24 @@ dependencies = [
 "windows_x86_64_msvc 0.53.1",
 ]

+[[package]]
+name = "windows-threading"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3949bd5b99cafdf1c7ca86b43ca564028dfe27d66958f2470940f73d86d75b37"
+dependencies = [
+ "windows-link",
+]
+
+[[package]]
+name = "windows-version"
+version = "0.1.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e4060a1da109b9d0326b7262c8e12c84df67cc0dbc9e33cf49e01ccc2eb63631"
+dependencies = [
+ "windows-link",
+]
+
 [[package]]
 name = "windows_aarch64_gnullvm"
 version = "0.42.2"
@@ -11,7 +11,7 @@ members = [
 ]

 [workspace.package]
-version = "0.4.2"
+version = "1.0.0"
 edition = "2024"
 license = "MIT"
 repository = "https://github.com/narrrl/proton-stream"
@@ -28,8 +28,8 @@ authors = ["Nils Pukropp <contact@narl.io>"]
 opt-level = 2

 [workspace.dependencies]
-proton-sdk = { version = "0.6.3" }
-proton-drive-rs = { version = "0.6.3" }
+proton-sdk = { version = "0.7.2" }
+proton-drive-rs = { version = "0.7.2" }

 # Internal crates.
 pstr-core = { path = "crates/pstr-core" }
@@ -51,6 +51,8 @@ anyhow = "1"
 tracing = "0.1"
 tracing-subscriber = { version = "0.3", features = ["env-filter"] }
 directories = "5"
+# Local dates for the history page. Already in the tree through the SDK.
+chrono = { version = "0.4", default-features = false, features = ["clock"] }
 sha2 = "0.10"
 # `bundled` so a Windows build needs no system SQLite.
 rusqlite = { version = "0.32", features = ["bundled"] }
@@ -77,6 +79,12 @@ eframe = { version = "0.35", default-features = false, features = [
    "x11",
 ] }
 egui = "0.35"
+# The icons on buttons. Glyphs like ⏭ and 🔊 come out of whichever fallback
+# font has them, at its own size and baseline; an icon font is one set.
+egui-phosphor = { version = "0.13", default-features = false, features = ["regular"] }
+# Tests only: reads the bundled fonts' character maps. The version epaint
+# already builds, so it costs no extra compile.
+skrifa = { version = "0.42", default-features = false, features = ["std"] }
 # Poster thumbnails only: Proton renders them as JPEG, and a decoder that also
 # pulls in every exotic format is weight this app has no use for.
 image = { version = "0.25", default-features = false, features = ["jpeg", "png", "webp"] }
@@ -93,9 +101,11 @@ souvlaki = { version = "0.8", default-features = false, features = ["use_dbus"]
 # hold it for.
 dbus = "0.9"
 windows-sys = "0.61"
+# Toasts on Windows. Linux notifications go over the `dbus` above.
+tauri-winrt-notification = "0.8"
 rpassword = "7"
 libloading = "0.8"
-lru = "0.12"
+lru = "0.18"
 # `async fn` in traits is stable at MSRV 1.96 but is not dyn-compatible, and the
 # stream layer needs a `dyn` block source so its cache, ring and read-ahead can
 # be tested against a fake without a network or an account.
@@ -0,0 +1,170 @@
+# Android plan
+
+Where the Android client stands against the desktop app, and what to change to
+make it feel like a modern streaming app rather than a settings form with a
+player attached. Written 2026-10-03 from a source review and four screenshots
+(Library, Title, Shares, Settings) taken on a phone running v0.5.0.
+
+Android last caught up with the desktop on 2026-08-10 (`4ef6225`); the desktop
+gained about twenty features on 2026-10-02 that Android does not have.
+
+## Status (2026-10-03)
+
+Done: section 0, every parity item, and every recommendation in section 2 —
+the Library, Title, Shares, Settings and Downloads redesigns, per-page app
+bars drawn edge to edge, search behind an icon, skeleton loading and
+generated placeholder art, Settings sub-pages and a language picker, a
+long-press Change match, Inter, light and tablet screenshots, the library
+and a title side by side from 840 dp, a poster-to-backdrop shared element
+transition, and predictive back on the title page.
+
+Two departures from the text below. The tablet layout is a two-pane `Row`
+rather than `ListDetailPaneScaffold`, which would have added the
+`adaptive-layout` artifact for one split. Pull to refresh shows the
+indicator while a crawl runs, but not the crawl's progress.
+
+Not yet verified on a device; the host gate (ktlint, unit and screenshot
+tests) passes, and Android lint runs in CI.
+
+## 0. CI (done)
+
+Every `Android` workflow run since August failed in `:app:buildRustHost`:
+`pstr-core` pulls `keyring` → `dbus-secret-service` → `libdbus-sys`, which needs
+`libdbus-1-dev` on the host. Because no run ever succeeded, no cache was ever
+saved, so each run started from nothing.
+
+- `libdbus-1-dev` added to both jobs' apt install.
+- `Swatinem/rust-cache` shares one key between the two jobs and saves on failure.
+- `android/app/build/generated/mpv` is cached on the hash of
+  `scripts/build-libmpv-android.sh`; the script writes a `STAMP` (revision plus
+  its own hash) last and skips the whole libmpv build when the stamp matches.
+
+Later runs also needed meson 1.12.1 from PyPI (noble's 1.3.2 is too old for
+the pinned fontconfig), libmpv built and cached in its own steps so a later
+failure keeps it, and lint's `OldTargetApi` made informational. A cached run
+restores libmpv in under a minute.
+
+## 1. Desktop parity
+
+Ordered by value on a phone.
+
+1. **Open share links from outside the app.** The manifest has only the
+   launcher intent. Add an `ACTION_VIEW` filter for `drive.proton.me/urls/*` and
+   an `ACTION_SEND` (`text/plain`) filter; both open the add-share dialog with
+   the link filled in. Desktop: `4a54af3`, `53a1d0a`.
+2. **Streaming cache budget.** Android runs on the fixed 4 GiB default
+   (`DiskCacheConfig::DEFAULT_BUDGET_BYTES`), large for a phone. Expose
+   `DiskCache::set_budget` through `pstr-android`, add a 1–16 GiB choice with a
+   usage readout under Storage. Desktop: `a432a93`.
+3. **Hardware-decoding switch.** `pstr_mpv.cpp` hard-codes
+   `hwdec=auto-copy-safe`; a device with green frames has no way out. A
+   Settings toggle, applied from the next file.
+4. **Episode list in the player.** A bottom sheet (portrait) or side panel
+   (landscape) with the title's episodes, opened on the playing season and
+   scrolled to the playing episode. Desktop: `7e734db`.
+5. **Long-press menu on tiles.** Play/resume, mark watched or unwatched,
+   download, change match, remove from Continue watching, in a
+   `ModalBottomSheet`. Desktop: `c5808a5`.
+6. **Undo on snackbars** for marking a title and leaving Continue watching.
+   `AppUiState.message` is a bare string today; it needs an action. Desktop:
+   `79c3f68`.
+7. **History tab.** Needs a bridge call over the `pstr-core::library` query
+   the desktop page uses. Desktop: `e7eeaa5`.
+8. **Buffered range on the seek bar** from mpv's `demuxer-cache-time`.
+9. **Up-next card** with the next episode's still and a countdown ring instead
+   of "Up next in 7s" text.
+10. **Featured banner** at the top of the library. Desktop: `7d03736`.
+11. **Bundled Inter** in `ui/theme/Type.kt`, so both clients read the same.
+    Desktop: `558446b`.
+
+## 2. UI recommendations
+
+### Everywhere
+
+- **Colours stay the theme's.** The red is the Persona theme's accent and the
+  card tint comes from the shared palette, so the redesign changes layout and
+  button hierarchy, not colours.
+- **One button hierarchy.** At most one filled accent button per screen;
+  secondary actions tonal or outlined; destructive actions behind a menu and a
+  confirmation, never a filled red button in a list row.
+- **Edge-to-edge, per-screen titles.** The "proton-stream" app bar on every
+  page wastes a band of height. Library uses a collapsing large title; Title
+  pages draw the backdrop under the status bar; other tabs use their name.
+- **Skeletons instead of spinners** for library and title loading, and
+  generated placeholder art (gradient from the accent plus the title's
+  initials) instead of a black card with a play triangle (Akira).
+- **Pull-to-refresh** (`PullToRefreshBox`) replaces the top-bar refresh icon,
+  with crawl progress shown in the indicator area.
+- **Split `ui/ProtonStreamApp.kt`** (1665 lines) into one file per screen
+  before the work below; every item touches it.
+
+### Library
+
+- Poster grid (2:3, `posterUrl`) at three columns on a phone, title under the
+  poster with no card body. The current 210 dp cropped backdrops fit two titles
+  per screen.
+- Continue watching: 16:9 still with the progress bar laid over the bottom
+  edge of the image and "S03E11 · 12 min left" under it.
+- Search becomes an icon in the app bar that expands into an M3 `SearchBar`,
+  instead of a permanent field above everything.
+- Fix "1 episodes" (line ~507; the season header already pluralises).
+
+### Title page
+
+- Full-bleed backdrop with a gradient scrim, poster, title and meta chips
+  (year, score, genres) over it, collapsing as the page scrolls.
+- Synopsis clamped to three lines with "More".
+- One full-width primary button, "Resume S03E11" or "Play S01E01", then a row
+  of icon actions: download, mark watched, and a ⋮ menu holding Start over,
+  Change match and More on AniList. Today five buttons of three styles wrap
+  over three lines.
+- Drop the "Preferred tracks" form and its Save button from this page. The
+  player already remembers tracks by name per title (`d3c5f07`); expose any
+  override from the player's track chooser.
+- Season picker as a dropdown chip or tabs, not stacked accordions; a 40
+  episode title is one long scroll today.
+- Episode rows: 16:9 still with progress overlay, "1 · Mother and Children"
+  (provider name, else "Episode 1") rather than the raw file name
+  `[Judas] Oshi no Ko - S01E01.mkv`, runtime or air date as supporting text,
+  watched and download state as small trailing icons. The red `S01E01` label
+  above each row goes.
+
+### Shares
+
+- `ListItem` rows: name, "12 titles · crawled 2 h ago" or the failure, and a ⋮
+  menu with Refresh, Re-enter link and Remove (confirmed). The current row
+  wraps "Custom password stored securely" over three lines beside three
+  differently styled actions.
+- "Add share" as an extended FAB, which is also where the share-link intent
+  from parity item 1 lands.
+
+### Settings
+
+- Grouped `ListItem` rows (headline, one line of supporting text, trailing
+  switch), with the long explanations moved into the supporting line or an
+  info dialog. Today each toggle carries a paragraph.
+- Split into sub-pages once storage and decoding settings land: Playback,
+  Downloads & storage, Appearance, Metadata, About.
+- Language fields become a picker dialog over a language list, not free text.
+- Storage shows a usage bar (cache, offline episodes) above the budget choice.
+
+### Robustness
+
+- Screenshot tests (Roborazzi, JVM, no device) for each screen in light and
+  dark, phone and tablet, at font scale 1.0 and 1.5 — the redesign changes
+  every screen, and `docs/TESTING.md` has no visual layer today.
+- 48 dp minimum touch targets and content descriptions on the new icon-only
+  actions.
+- Tablet: `ListDetailPaneScaffold` for library + title, since
+  `NavigationSuiteScaffold` already switches to a rail there.
+- Shared-element transition from a poster to its title page, and predictive
+  back.
+
+## Suggested order
+
+1. CI green (section 0).
+2. Split `ProtonStreamApp.kt`; add screenshot tests for the current screens.
+3. Parity 1–3 (small, phone-specific fixes).
+4. Button hierarchy and Inter — every later screen inherits them.
+5. Title page, then Library, then Shares and Settings.
+6. Parity 4–10.
@@ -35,8 +35,12 @@ Its toolchain, emulator, signing, and release instructions are in [`docs/ANDROID

 ```bash
 cargo run --release -p pstr-app          # the app
+proton-stream 'https://drive.proton.me/urls/TOKEN#fragment'   # open the Add form with a link
 ```

+One window at a time: a second launch brings the open window forward and
+hands it any share link it was given, then exits.
+
 The `pstr` CLI does the same work headlessly, and is what tells you which layer
 is broken:

@@ -106,6 +110,9 @@ see [`docs/ANDROID.md`](docs/ANDROID.md) for exact setup and release signing.
 - The block cache holds decrypted content. It lives in your cache directory,
  can be deleted at any time the app is not running, and can be sized or
  emptied from Settings → Storage.
+- A share link given as a command-line argument is visible to other users of
+  the machine in the process list while that launch runs, and may land in
+  shell history. Pasting it into the window (Ctrl+V) does neither.
 - The desktop's media widget is handed the title, the episode and a `file://`
  path to artwork already on disk — never a provider URL, so the shell never
  contacts a metadata provider on its own.
@@ -115,3 +122,6 @@ see [`docs/ANDROID.md`](docs/ANDROID.md) for exact setup and release signing.
 The shared Rust crates and desktop application are MIT licensed. The Android
 application and its combined native distribution are GPL-3.0-or-later; see
 [`android/LICENSE.md`](android/LICENSE.md) and the bundled-component notices.
+The desktop application embeds the Inter typeface, under the SIL Open Font
+License 1.1 ([`crates/pstr-app/assets/fonts/Inter-OFL.txt`](crates/pstr-app/assets/fonts/Inter-OFL.txt)),
+and the Phosphor icon font, under MIT.
@@ -12,6 +12,7 @@ distributions.
 | Kotlin | Apache-2.0 |
 | JNA | Apache-2.0 or LGPL-2.1-or-later |
 | UniFFI | MPL-2.0 |
+| Inter typeface (bundled, `Inter-OFL.txt`) | OFL-1.1 |
 | proton-stream shared Rust crates | MIT |

 This summary is not a replacement for dependency license files. Before a
@@ -6,6 +6,7 @@ plugins {
    alias(libs.plugins.kotlin.android)
    alias(libs.plugins.kotlin.compose)
    alias(libs.plugins.ktlint)
+    alias(libs.plugins.roborazzi)
 }

 val repositoryRoot = rootProject.projectDir.parentFile
@@ -142,6 +143,9 @@ android {
            "GradleDependency",
            "NewerVersionAvailable",
            "AndroidGradlePluginVersion",
+            // The same for the platform: raising targetSdk opts into new
+            // behaviour and needs its own pass on a device.
+            "OldTargetApi",
        )
        sarifReport = true
    }
@@ -269,6 +273,11 @@ dependencies {
    testImplementation(libs.robolectric)
    testImplementation(libs.androidx.test.core)
    testImplementation(libs.androidx.work.testing)
+    testImplementation(platform(libs.androidx.compose.bom))
+    testImplementation(libs.androidx.compose.ui.test.junit4)
+    testImplementation(libs.roborazzi)
+    testImplementation(libs.roborazzi.compose)
+    testImplementation(libs.roborazzi.junit.rule)

    androidTestImplementation(libs.androidx.test.junit)
    androidTestImplementation(libs.androidx.test.core)
@@ -292,6 +301,13 @@ ktlint {
    }
 }

+// Screenshot baselines live beside the tests that draw them, so a change to how
+// a screen looks shows up in review as a changed image. `recordRoborazziDebug`
+// rewrites them; `verifyRoborazziDebug` fails on any difference.
+roborazzi {
+    outputDir.set(file("src/test/screenshots"))
+}
+
 // The generated UniFFI directory is a main source dir, so ktlint reads it even
 // though the filter above drops every file in it. Without this, Gradle refuses
 // the build for an undeclared dependency between the two tasks.
@@ -11,7 +11,9 @@
        android:name=".ProtonStreamApplication"
        android:allowBackup="false"
        android:dataExtractionRules="@xml/data_extraction_rules"
-        android:icon="@drawable/ic_launcher_foreground"
+        android:enableOnBackInvokedCallback="true"
+        tools:targetApi="33"
+        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:theme="@style/Theme.ProtonStream">
@@ -29,6 +31,7 @@

        <activity
            android:name=".MainActivity"
+            android:label="@string/launcher_name"
            android:configChanges="screenSize|smallestScreenSize|screenLayout|orientation|uiMode|density|fontScale|locale|layoutDirection|keyboardHidden"
            android:exported="true"
            android:launchMode="singleTask"
@@ -38,6 +41,24 @@
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
+            <!--
+              Proton Drive public links. autoVerify="false", said explicitly:
+              the domain is Proton's, so this can never be a verified App Link.
+              Android only opens these here once "Open supported links" is
+              allowed in the app's settings; sharing a link to the app works
+              without that.
+            -->
+            <intent-filter android:autoVerify="false">
+                <action android:name="android.intent.action.VIEW" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <category android:name="android.intent.category.BROWSABLE" />
+                <data android:scheme="https" android:host="drive.proton.me" android:pathPrefix="/urls/" />
+            </intent-filter>
+            <intent-filter>
+                <action android:name="android.intent.action.SEND" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <data android:mimeType="text/plain" />
+            </intent-filter>
        </activity>

    </application>
@@ -0,0 +1,92 @@
+Copyright (c) 2016 The Inter Project Authors (https://github.com/rsms/inter)
+
+This Font Software is licensed under the SIL Open Font License, Version 1.1.
+This license is copied below, and is also available with a FAQ at:
+http://scripts.sil.org/OFL
+
+-----------------------------------------------------------
+SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
+-----------------------------------------------------------
+
+PREAMBLE
+The goals of the Open Font License (OFL) are to stimulate worldwide
+development of collaborative font projects, to support the font creation
+efforts of academic and linguistic communities, and to provide a free and
+open framework in which fonts may be shared and improved in partnership
+with others.
+
+The OFL allows the licensed fonts to be used, studied, modified and
+redistributed freely as long as they are not sold by themselves. The
+fonts, including any derivative works, can be bundled, embedded,
+redistributed and/or sold with any software provided that any reserved
+names are not used by derivative works. The fonts and derivatives,
+however, cannot be released under any other type of license. The
+requirement for fonts to remain under this license does not apply
+to any document created using the fonts or their derivatives.
+
+DEFINITIONS
+"Font Software" refers to the set of files released by the Copyright
+Holder(s) under this license and clearly marked as such. This may
+include source files, build scripts and documentation.
+
+"Reserved Font Name" refers to any names specified as such after the
+copyright statement(s).
+
+"Original Version" refers to the collection of Font Software components as
+distributed by the Copyright Holder(s).
+
+"Modified Version" refers to any derivative made by adding to, deleting,
+or substituting -- in part or in whole -- any of the components of the
+Original Version, by changing formats or by porting the Font Software to a
+new environment.
+
+"Author" refers to any designer, engineer, programmer, technical
+writer or other person who contributed to the Font Software.
+
+PERMISSION AND CONDITIONS
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of the Font Software, to use, study, copy, merge, embed, modify,
+redistribute, and sell modified and unmodified copies of the Font
+Software, subject to the following conditions:
+
+1) Neither the Font Software nor any of its individual components,
+in Original or Modified Versions, may be sold by itself.
+
+2) Original or Modified Versions of the Font Software may be bundled,
+redistributed and/or sold with any software, provided that each copy
+contains the above copyright notice and this license. These can be
+included either as stand-alone text files, human-readable headers or
+in the appropriate machine-readable metadata fields within text or
+binary files as long as those fields can be easily viewed by the user.
+
+3) No Modified Version of the Font Software may use the Reserved Font
+Name(s) unless explicit written permission is granted by the corresponding
+Copyright Holder. This restriction only applies to the primary font name as
+presented to the users.
+
+4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font
+Software shall not be used to promote, endorse or advertise any
+Modified Version, except to acknowledge the contribution(s) of the
+Copyright Holder(s) and the Author(s) or with their explicit written
+permission.
+
+5) The Font Software, modified or unmodified, in part or in whole,
+must be distributed entirely under this license, and must not be
+distributed under any other license. The requirement for fonts to
+remain under this license does not apply to any document created
+using the Font Software.
+
+TERMINATION
+This license becomes null and void if any of the above conditions are
+not met.
+
+DISCLAIMER
+THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
+OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE
+COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
+DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM
+OTHER DEALINGS IN THE FONT SOFTWARE.
@@ -11,6 +11,7 @@ complete GNU GPL version 3 text is packaged beside this file as `GPL-3.0.txt`.
 | Kotlin | Apache-2.0 |
 | JNA | Apache-2.0 or LGPL-2.1-or-later |
 | UniFFI | MPL-2.0 |
+| Inter typeface (bundled, `Inter-OFL.txt`) | OFL-1.1 |
 | proton-stream reusable Rust crates | MIT |

 Before release, replace this dependency summary with an inventory generated
@@ -31,6 +31,8 @@ extern "C" {
 namespace {

 constexpr const char *kProtocol = "pstr";
+/// mpv's `hwdec` when hardware decoding is on. Why this value: `Player()`.
+constexpr const char *kHardwareDecoding = "auto-copy-safe";

 struct StreamCookie {
    uint64_t handle;
@@ -191,6 +193,9 @@ struct PlaybackState {
    /// Between a seek being issued and playback actually resuming. The seek bar
    /// has moved but the picture has not.
    bool seeking = false;
+    /// How far into the file the demuxer has read ahead, in seconds; what the
+    /// seek bar shades, so a jump into it is known to cost no fetch.
+    double cached_until = 0.0;
    /// True between `loadfile` being issued and mpv acknowledging it with
    /// `START_FILE`. Everything mpv reports in that window still describes the
    /// *outgoing* file — including the `END_FILE(STOP)` that stopping it emits —
@@ -216,6 +221,7 @@ class Player {
        option("vo", "libmpv");
        option("force-window", "no");
        option("video-timing-offset", "0");
+        // The default; `load` sets it per file from the viewer's setting.
        // `-copy-safe`, not `-safe`. The direct MediaCodec decoders render into
        // an `ANativeWindow` the decoder is handed at init, and this player has
        // none to give: the picture goes through `vo_libmpv` and an EGL pbuffer,
@@ -224,7 +230,7 @@ class Player {
        // `hevc_mediacodec: Both surface and native_window are NULL` before
        // falling back. The copy variants decode in hardware and hand back
        // ordinary frames, which is what this render path can actually use.
-        option("hwdec", "auto-copy-safe");
+        option("hwdec", kHardwareDecoding);
        option("cache", "yes");
        option("cache-secs", "30");
        option("demuxer-readahead-secs", "30");
@@ -245,6 +251,7 @@ class Player {
        observe("video-params/dh", 7, MPV_FORMAT_INT64);
        observe("paused-for-cache", 8, MPV_FORMAT_FLAG);
        observe("cache-buffering-state", 9, MPV_FORMAT_INT64);
+        observe("demuxer-cache-time", 10, MPV_FORMAT_DOUBLE);
        // Errors mpv reports about the file itself, rather than about the
        // request that opened it. Without these a failed demux is silent.
        mpv_request_log_messages(mpv_, "error");
@@ -294,8 +301,12 @@ class Player {
    }

    bool load(uint64_t handle, double start, const std::string &audio,
-              const std::string &subtitle, bool subtitles) {
+              const std::string &subtitle, bool subtitles,
+              bool hardware_decoding) {
        if (!mpv_) return false;
+        // Per file, before `loadfile`: a device whose decoder shows green
+        // frames is fixed from the next episode without restarting the core.
+        set_string("hwdec", hardware_decoding ? kHardwareDecoding : "no");
        // No wait for a render context. It is created with the render thread and
        // needs no window, and a load that cannot get one plays audio anyway —
        // waiting for a surface here is what made background playback fail after
@@ -591,6 +602,7 @@ class Player {
        else if (!std::strcmp(property.name, "video-params/dh")) state_.video_height = static_cast<double>(*static_cast<int64_t *>(property.data));
        else if (!std::strcmp(property.name, "paused-for-cache")) state_.buffering = *static_cast<int *>(property.data);
        else if (!std::strcmp(property.name, "cache-buffering-state")) state_.cache_percent = static_cast<double>(*static_cast<int64_t *>(property.data));
+        else if (!std::strcmp(property.name, "demuxer-cache-time")) state_.cached_until = *static_cast<double *>(property.data);
    }

    static void render_update(void *opaque) noexcept {
@@ -822,7 +834,7 @@ extern "C" JNIEXPORT void JNICALL Java_io_narl_protonstream_playback_NativeMpvHo
 extern "C" JNIEXPORT void JNICALL Java_io_narl_protonstream_playback_NativeMpvHost_nativeDetachSurface(JNIEnv *, jobject, jlong handle) noexcept {
    c_boundary([=] { if (auto *p = from(handle)) p->detach(); });
 }
-extern "C" JNIEXPORT jboolean JNICALL Java_io_narl_protonstream_playback_NativeMpvHost_nativeLoad(JNIEnv *env, jobject, jlong handle, jlong stream, jdouble start, jstring audio, jstring subtitle, jboolean subtitles) noexcept {
+extern "C" JNIEXPORT jboolean JNICALL Java_io_narl_protonstream_playback_NativeMpvHost_nativeLoad(JNIEnv *env, jobject, jlong handle, jlong stream, jdouble start, jstring audio, jstring subtitle, jboolean subtitles, jboolean hardware_decoding) noexcept {
    return c_boundary<jboolean>(JNI_FALSE, [=] {
        std::string audio_text;
        std::string subtitle_text;
@@ -832,7 +844,8 @@ extern "C" JNIEXPORT jboolean JNICALL Java_io_narl_protonstream_playback_NativeM
        auto *p = from(handle);
        return static_cast<jboolean>(
            p && p->load(static_cast<uint64_t>(stream), start, audio_text,
-                         subtitle_text, subtitles == JNI_TRUE)
+                         subtitle_text, subtitles == JNI_TRUE,
+                         hardware_decoding == JNI_TRUE)
                ? JNI_TRUE
                : JNI_FALSE);
    });
@@ -868,8 +881,8 @@ extern "C" JNIEXPORT jdoubleArray JNICALL Java_io_narl_protonstream_playback_Nat
                                  state.video_width, state.video_height,
                                  static_cast<jdouble>(state.end_reason),
                                  state.buffering ? 1.0 : 0.0, state.cache_percent,
-                                  state.seeking ? 1.0 : 0.0};
-        constexpr jsize kFields = 13;
+                                  state.seeking ? 1.0 : 0.0, state.cached_until};
+        constexpr jsize kFields = 14;
        jdoubleArray result = env->NewDoubleArray(kFields);
        if (!result) return static_cast<jdoubleArray>(nullptr);
        env->SetDoubleArrayRegion(result, 0, kFields, values);
@@ -0,0 +1,22 @@
+package io.narl.protonstream
+
+import android.content.Intent
+
+/**
+ * A Proton Drive public link, wherever in a piece of text it sits.
+ *
+ * The fragment is kept: it is the share's secret, and a link without it cannot
+ * be opened. Matching stops at whitespace and at the quotes and brackets a
+ * message app wraps a link in, which never occur in a link itself.
+ */
+private val SHARE_LINK = Regex("""https://drive\.proton\.me/urls/[^\s"'<>()\[\]]+""")
+
+/** The share link an `ACTION_VIEW` URL or an `ACTION_SEND` text carries, if any. */
+internal fun shareLinkFrom(action: String?, url: String?, text: CharSequence?): String? = when (action) {
+    Intent.ACTION_VIEW -> url?.let { SHARE_LINK.matchEntire(it)?.value }
+    Intent.ACTION_SEND -> text?.let { SHARE_LINK.find(it)?.value }
+    else -> null
+}
+
+internal fun Intent.shareLink(): String? =
+    shareLinkFrom(action, dataString, getCharSequenceExtra(Intent.EXTRA_TEXT))
@@ -48,6 +48,9 @@ import uniffi.pstr_android.PaletteRecord
 class MainActivity : ComponentActivity() {
    private val playerHost = mutableStateOf<NativeMpvHost?>(null)
    private val inPictureInPicture = mutableStateOf(false)
+
+    /** A share link handed over by a browser or the share sheet, until the Add form takes it. */
+    private val incomingShareLink = mutableStateOf<String?>(null)
    /**
     * Whether a bind is outstanding, which is what has to be unbound.
     *
@@ -97,6 +100,9 @@ class MainActivity : ComponentActivity() {
        // Infallible by construction — an unreadable theme file resolves to the
        // shipped default rather than throwing.
        runCatching { NativeRuntime.storedPalette() }.onSuccess(AppearanceState::seed)
+        // Only on a fresh start: a recreated activity is handed the intent it
+        // was launched with again, and would offer to add the same share twice.
+        if (savedInstanceState == null) incomingShareLink.value = intent.shareLink()
        enableEdgeToEdge()
        // Re-applied on every change, not just at startup: picking Latte from
        // the settings page has to turn the status bar's icons dark in the same
@@ -134,7 +140,12 @@ class MainActivity : ComponentActivity() {
        }
        setContent {
            ProtonStreamTheme {
-                ProtonStreamApp(playerHost.value, inPictureInPicture.value)
+                ProtonStreamApp(
+                    playerHost.value,
+                    inPictureInPicture.value,
+                    shareLink = incomingShareLink.value,
+                    onShareLinkTaken = { incomingShareLink.value = null },
+                )
            }
        }
    }
@@ -159,6 +170,13 @@ class MainActivity : ComponentActivity() {
        }
    }

+    // singleTask: a link opened while the app is running arrives here, not in
+    // a second activity.
+    override fun onNewIntent(intent: Intent) {
+        super.onNewIntent(intent)
+        intent.shareLink()?.let { incomingShareLink.value = it }
+    }
+
    override fun onUserLeaveHint() {
        super.onUserLeaveHint()
        // The backstop for launchers that still send this instead of arming
@@ -1,6 +1,7 @@
 package io.narl.protonstream.native

 import android.content.Context
+import io.narl.protonstream.settings.SettingsStore
 import java.io.File
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.withContext
@@ -56,5 +57,9 @@ object NativeRuntime {
    }

    private fun createEngine(): AndroidEngine =
-        AndroidEngine(paths(), KeystoreSecretStore(appContext))
+        AndroidEngine(paths(), KeystoreSecretStore(appContext)).apply {
+            // The budget is Android's setting, so the engine starts on the
+            // default and is told the chosen one before anything streams.
+            setStreamCacheBudget(SettingsStore.gibToBytes(SettingsStore(appContext).cacheBudgetGib))
+        }
 }
@@ -75,6 +75,8 @@ data class MpvPlaybackState(
    val cachePercent: Double = 0.0,
    /** A seek has been issued but playback has not resumed at the new position. */
    val seeking: Boolean = false,
+    /** How far the demuxer has read ahead, in seconds into the file. */
+    val cachedUntil: Double = 0.0,
 ) {
    /** Whether the picture is stopped for a reason the viewer did not choose. */
    val stalled: Boolean get() = (buffering || seeking) && !paused && !ended
@@ -184,12 +186,16 @@ class NativeMpvHost private constructor(private val nativeHandle: Long) : Libmpv
        audioLanguage: String?,
        subtitleLanguage: String?,
        subtitles: Boolean,
+        hardwareDecoding: Boolean,
    ) {
        check(size > 0uL) { "Cannot play an empty stream" }
        try {
            withContext(Dispatchers.IO) {
                val loaded = withOpenHandle {
-                    nativeLoad(it, nativeHandle.toLong(), startPosition, audioLanguage, subtitleLanguage, subtitles).also { loaded ->
+                    nativeLoad(
+                        it, nativeHandle.toLong(), startPosition, audioLanguage, subtitleLanguage, subtitles,
+                        hardwareDecoding,
+                    ).also { loaded ->
                        if (loaded) {
                            // The outgoing stream is released by mpv closing it,
                            // not from here: `loadfile` is asynchronous and its
@@ -309,6 +315,7 @@ class NativeMpvHost private constructor(private val nativeHandle: Long) : Libmpv
                        buffering = values[BUFFERING] != 0.0,
                        cachePercent = values[CACHE_PERCENT],
                        seeking = values[SEEKING] != 0.0,
+                        cachedUntil = values[CACHED_UNTIL],
                    )
                    mutableState.value = next
                    // The listeners drive the media session and the player UI,
@@ -398,7 +405,15 @@ class NativeMpvHost private constructor(private val nativeHandle: Long) : Libmpv
    private external fun nativeDestroy(handle: Long)
    private external fun nativeAttachSurface(handle: Long, surface: Surface)
    private external fun nativeDetachSurface(handle: Long)
-    private external fun nativeLoad(handle: Long, stream: Long, start: Double, audio: String?, subtitle: String?, subtitles: Boolean): Boolean
+    private external fun nativeLoad(
+        handle: Long,
+        stream: Long,
+        start: Double,
+        audio: String?,
+        subtitle: String?,
+        subtitles: Boolean,
+        hardwareDecoding: Boolean,
+    ): Boolean
    private external fun nativePause(handle: Long, paused: Boolean)
    private external fun nativeSeek(handle: Long, position: Double)
    private external fun nativeVolume(handle: Long, volume: Double)
@@ -419,7 +434,7 @@ class NativeMpvHost private constructor(private val nativeHandle: Long) : Libmpv

    companion object {
        /** Fields `nativeState` fills, in the order `pstr_mpv.cpp` writes them. */
-        private const val FIELDS = 13
+        private const val FIELDS = 14
        private const val GENERATION = 6
        private const val WIDTH = 7
        private const val HEIGHT = 8
@@ -427,6 +442,7 @@ class NativeMpvHost private constructor(private val nativeHandle: Long) : Libmpv
        private const val BUFFERING = 10
        private const val CACHE_PERCENT = 11
        private const val SEEKING = 12
+        private const val CACHED_UNTIL = 13

        init {
            System.loadLibrary("pstr_android")
@@ -76,6 +76,7 @@ import androidx.compose.ui.viewinterop.AndroidView
 import androidx.core.view.WindowCompat
 import androidx.core.view.WindowInsetsCompat
 import androidx.core.view.WindowInsetsControllerCompat
+import io.narl.protonstream.settings.SettingsStore
 import io.narl.protonstream.native.NativeRuntime
 import io.narl.protonstream.ui.theme.AccentButton
 import io.narl.protonstream.ui.theme.AccentTrack
@@ -83,6 +84,19 @@ import io.narl.protonstream.ui.theme.EdgedButton
 import io.narl.protonstream.ui.theme.QuietButton
 import io.narl.protonstream.ui.theme.TonalButton
 import io.narl.protonstream.ui.thumbnailSource
+import androidx.compose.foundation.lazy.rememberLazyListState
+import androidx.compose.foundation.lazy.itemsIndexed
+import androidx.compose.material3.ModalBottomSheet
+import androidx.compose.material.icons.filled.VideoLibrary
+import androidx.compose.foundation.layout.PaddingValues
+import io.narl.protonstream.ui.theme.AccentProgress
+import androidx.compose.animation.core.LinearEasing
+import androidx.compose.animation.core.animateFloatAsState
+import androidx.compose.animation.core.tween
+import io.narl.protonstream.ui.RemoteArtwork
+import androidx.compose.foundation.shape.CircleShape
+import androidx.compose.foundation.layout.aspectRatio
+import androidx.compose.ui.draw.clip
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
@@ -207,6 +221,7 @@ fun PlayerScreen(
            nativeHost.play(
                key, startup.nativeHandle, startup.size, startup.startPosition,
                startup.audioLanguage, startup.subtitleLanguage, startup.subtitles,
+                SettingsStore(context).hardwareDecoding,
            )
            // After the load, because mpv keeps none of the three across one.
            nativeHost.setVolume(startup.volume)
@@ -272,6 +287,12 @@ fun PlayerScreen(
        nativeHost.beginTransition()
        onIndexChange(index - 1)
    }
+    fun jumpTo(target: Int) {
+        if (target == index || target !in episodes.indices) return
+        save()
+        nativeHost.beginTransition()
+        onIndexChange(target)
+    }

    // What the media notification, the lock screen and Picture-in-Picture show.
    // None of them can reach this composition, and all three have to name the
@@ -444,6 +465,9 @@ fun PlayerScreen(
                hasNext = next != null,
                onPrevious = { retreat() },
                onNext = { advance() },
+                episodes = episodes,
+                playing = index,
+                onEpisode = { jumpTo(it) },
                onRotate = { landscapeLocked = activity?.toggleLandscape() ?: false },
                landscapeLocked = landscapeLocked,
            )
@@ -591,11 +615,15 @@ private fun PlayerControls(
    hasNext: Boolean,
    onPrevious: () -> Unit,
    onNext: () -> Unit,
+    episodes: List<EpisodeRecord>,
+    playing: Int,
+    onEpisode: (Int) -> Unit,
    onRotate: () -> Unit,
    landscapeLocked: Boolean,
 ) {
    val scope = rememberCoroutineScope()
    var choosing by remember { mutableStateOf<String?>(null) }
+    var showEpisodes by remember { mutableStateOf(false) }
    var showChapters by remember { mutableStateOf(false) }
    var showSpeeds by remember { mutableStateOf(false) }
    // What the store says, so the dialog opens on the rate that is playing.
@@ -638,7 +666,12 @@ private fun PlayerControls(
                        scrubbing = null
                    },
                    valueRange = 0f..duration,
-                    track = { AccentTrack(it) },
+                    track = {
+                        AccentTrack(
+                            it,
+                            buffered = if (state.duration > 0) (state.cachedUntil / state.duration).toFloat() else 0f,
+                        )
+                    },
                )
                ChapterMarks(chapters, state.duration, Modifier.matchParentSize())
            }
@@ -664,6 +697,9 @@ private fun PlayerControls(
                CompactIcon(Icons.Default.SkipNext, "Next episode", enabled = hasNext, onClick = onNext)
            }
            Row(verticalAlignment = Alignment.CenterVertically) {
+                if (episodes.size > 1) {
+                    CompactIcon(Icons.Default.VideoLibrary, "Episodes") { showEpisodes = true }
+                }
                if (chapters.size > 1) {
                    CompactIcon(Icons.AutoMirrored.Filled.Toc, "Chapters") { showChapters = true }
                }
@@ -716,6 +752,14 @@ private fun PlayerControls(
            },
        )
    }
+    if (showEpisodes) {
+        EpisodeChooser(
+            episodes = episodes,
+            playing = playing,
+            onDismiss = { showEpisodes = false },
+            onSelect = { showEpisodes = false; onEpisode(it) },
+        )
+    }
    if (showChapters) {
        ChapterChooser(
            chapters = chapters,
@@ -870,6 +914,83 @@ private fun ChapterChooser(
    )
 }

+/**
+ * The title's episodes, from the player: a sheet rather than a dialog, opened
+ * scrolled to the one playing so the next few are in view without a search.
+ * Each row has its still, its name, and whether it is playing, watched or
+ * part way.
+ */
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+private fun EpisodeChooser(
+    episodes: List<EpisodeRecord>,
+    playing: Int,
+    onDismiss: () -> Unit,
+    onSelect: (Int) -> Unit,
+) {
+    val list = rememberLazyListState(initialFirstVisibleItemIndex = (playing - 1).coerceAtLeast(0))
+    ModalBottomSheet(onDismissRequest = onDismiss) {
+        Text(
+            "Episodes",
+            style = MaterialTheme.typography.titleMedium,
+            modifier = Modifier.padding(horizontal = 24.dp, vertical = 8.dp),
+        )
+        LazyColumn(state = list, contentPadding = PaddingValues(bottom = 24.dp)) {
+            itemsIndexed(episodes, key = { _, it -> it.linkId }) { position, episode ->
+                val current = position == playing
+                Row(
+                    Modifier
+                        .fillMaxWidth()
+                        .clickable { onSelect(position) }
+                        .background(
+                            if (current) MaterialTheme.colorScheme.secondaryContainer else Color.Transparent,
+                        )
+                        .padding(horizontal = 16.dp, vertical = 8.dp),
+                    verticalAlignment = Alignment.CenterVertically,
+                ) {
+                    Box(Modifier.width(112.dp).aspectRatio(16f / 9f).clip(MaterialTheme.shapes.small)) {
+                        RemoteArtwork(
+                            episode.stillUrl,
+                            episode.label,
+                            Modifier.fillMaxSize(),
+                            fallback = episode.thumbnailSource,
+                            labelled = false,
+                        )
+                        episode.progress?.takeIf { !episode.watched && !current }?.let { progress ->
+                            AccentProgress(
+                                progress = { progress.toFloat().coerceIn(0f, 1f) },
+                                modifier = Modifier.fillMaxWidth().align(Alignment.BottomCenter),
+                            )
+                        }
+                    }
+                    Column(Modifier.weight(1f).padding(start = 12.dp)) {
+                        Text(
+                            episode.providerName ?: episode.label,
+                            style = MaterialTheme.typography.titleSmall,
+                            maxLines = 2,
+                            overflow = TextOverflow.Ellipsis,
+                        )
+                        Text(
+                            when {
+                                current -> "Playing"
+                                episode.watched -> "${episode.label} · Watched"
+                                episode.resumeAt != null -> "${episode.label} · Part way"
+                                else -> episode.label
+                            },
+                            style = MaterialTheme.typography.bodySmall,
+                            color = if (current) {
+                                MaterialTheme.colorScheme.primary
+                            } else {
+                                MaterialTheme.colorScheme.onSurfaceVariant
+                            },
+                        )
+                    }
+                }
+            }
+        }
+    }
+}
+
 /**
 * The countdown into the next episode, shown once the credits run starts.
 *
@@ -898,26 +1019,65 @@ private fun UpNextCard(
    }
    // `showing` already implies a non-null episode, and the compiler knows it.
    if (!showing) return
+    // Eased between ticks, so the ring runs down rather than stepping once a
+    // second.
+    val ring by animateFloatAsState(
+        targetValue = remaining.toFloat() / UP_NEXT_SECONDS,
+        animationSpec = tween(durationMillis = 1_000, easing = LinearEasing),
+        label = "up-next countdown",
+    )
    Column(
        modifier
-            .background(MaterialTheme.colorScheme.surfaceContainerHighest, MaterialTheme.shapes.small)
+            .width(280.dp)
+            .background(MaterialTheme.colorScheme.surfaceContainerHighest, MaterialTheme.shapes.medium)
            .padding(12.dp),
    ) {
-        Text(
-            "Up next in ${remaining}s",
-            color = MaterialTheme.colorScheme.onSurfaceVariant,
-            style = MaterialTheme.typography.labelMedium,
-        )
-        Text(
-            upNext.label,
-            color = MaterialTheme.colorScheme.onSurface,
-            maxLines = 1,
-            overflow = TextOverflow.Ellipsis,
-            style = MaterialTheme.typography.titleSmall,
-        )
-        Row(horizontalArrangement = Arrangement.spacedBy(8.dp), modifier = Modifier.padding(top = 8.dp)) {
-            AccentButton(onClick = onPlayNow) { Text("Play now") }
-            QuietButton(onClick = { held = true }) { Text("Watch till the end") }
+        Row(verticalAlignment = Alignment.CenterVertically) {
+            // The next episode's still, so the card says which episode
+            // without being read; the ring over it is both the countdown and
+            // the button that skips it.
+            Box(
+                Modifier
+                    .width(112.dp)
+                    .aspectRatio(16f / 9f)
+                    .clip(MaterialTheme.shapes.small)
+                    .clickable(onClick = onPlayNow),
+                contentAlignment = Alignment.Center,
+            ) {
+                RemoteArtwork(
+                    upNext.stillUrl,
+                    upNext.label,
+                    Modifier.fillMaxSize(),
+                    fallback = upNext.thumbnailSource,
+                    labelled = false,
+                )
+                Box(Modifier.size(40.dp).clip(CircleShape).background(Color.Black.copy(alpha = 0.5f)))
+                CircularProgressIndicator(
+                    progress = { ring },
+                    modifier = Modifier.size(40.dp),
+                    color = Color.White,
+                    trackColor = Color.White.copy(alpha = 0.25f),
+                    strokeWidth = 3.dp,
+                )
+                Icon(Icons.Default.PlayArrow, contentDescription = "Play now", tint = Color.White)
+            }
+            Column(Modifier.weight(1f).padding(start = 12.dp)) {
+                Text(
+                    "Up next in ${remaining}s",
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                    style = MaterialTheme.typography.labelMedium,
+                )
+                Text(
+                    upNext.providerName ?: upNext.label,
+                    color = MaterialTheme.colorScheme.onSurface,
+                    maxLines = 2,
+                    overflow = TextOverflow.Ellipsis,
+                    style = MaterialTheme.typography.titleSmall,
+                )
+            }
+        }
+        QuietButton(onClick = { held = true }, modifier = Modifier.padding(top = 4.dp)) {
+            Text("Watch till the end")
        }
    }
 }
@@ -92,6 +92,7 @@ interface LibmpvHost {
        audioLanguage: String? = null,
        subtitleLanguage: String? = null,
        subtitles: Boolean = true,
+        hardwareDecoding: Boolean = true,
    )

    /** Calls pstr_android_stream_release exactly once for a published handle. */
@@ -20,9 +20,34 @@ class SettingsStore(context: Context) {
        get() = preferences.getBoolean(KEY_BACKGROUND_AUDIO, true)
        set(value) { preferences.edit().putBoolean(KEY_BACKGROUND_AUDIO, value).apply() }

-    private companion object {
-        const val NAME = "proton_stream_settings"
-        const val KEY_WIFI_ONLY = "wifi_only"
-        const val KEY_BACKGROUND_AUDIO = "background_audio"
+    /**
+     * Whether mpv may decode in hardware. Off is the way out for a device whose
+     * MediaCodec decoder shows green or torn frames; it costs battery, so it is
+     * on unless the viewer turns it off. Read at each load, so a change applies
+     * from the next file.
+     */
+    var hardwareDecoding: Boolean
+        get() = preferences.getBoolean(KEY_HARDWARE_DECODING, true)
+        set(value) { preferences.edit().putBoolean(KEY_HARDWARE_DECODING, value).apply() }
+
+    /** The streaming cache's budget, in GiB. See [CACHE_BUDGET_CHOICES]. */
+    var cacheBudgetGib: Int
+        get() = preferences.getInt(KEY_CACHE_BUDGET_GIB, DEFAULT_CACHE_BUDGET_GIB)
+        set(value) { preferences.edit().putInt(KEY_CACHE_BUDGET_GIB, value).apply() }
+
+    companion object {
+        /** The desktop's range, in the steps a phone's storage is bought in. */
+        val CACHE_BUDGET_CHOICES = listOf(1, 2, 4, 8, 16)
+
+        /** `DiskCacheConfig::DEFAULT_BUDGET_BYTES`, so an unset choice changes nothing. */
+        const val DEFAULT_CACHE_BUDGET_GIB = 4
+
+        fun gibToBytes(gib: Int): ULong = gib.toULong() * 1024uL * 1024uL * 1024uL
+
+        private const val NAME = "proton_stream_settings"
+        private const val KEY_WIFI_ONLY = "wifi_only"
+        private const val KEY_BACKGROUND_AUDIO = "background_audio"
+        private const val KEY_HARDWARE_DECODING = "hardware_decoding"
+        private const val KEY_CACHE_BUDGET_GIB = "cache_budget_gib"
    }
 }
@@ -33,6 +33,7 @@ import uniffi.pstr_android.MetadataProvider
 import uniffi.pstr_android.MetadataSettingsRecord
 import uniffi.pstr_android.StorageUsageRecord
 import uniffi.pstr_android.EpisodeRecord
+import uniffi.pstr_android.WatchStateRecord

 data class AppUiState(
    val loading: Boolean = true,
@@ -49,8 +50,16 @@ data class AppUiState(
    ),
    val storage: StorageUsageRecord = StorageUsageRecord(0uL, 0uL, 0uL, 0uL),
    val message: String? = null,
+    /** What Undo on [message] puts back, when the message offers one. */
+    val undo: List<WatchSnapshot>? = null,
 )

+/**
+ * One episode's watch state as it was before a change the viewer can undo.
+ * Null [state] means it had never been played.
+ */
+data class WatchSnapshot(val shareId: String, val linkId: String, val state: WatchStateRecord?)
+
@OptIn(FlowPreview::class)
 class AppViewModel(context: Context, private val workManager: WorkManager) : ViewModel() {
    private val appContext = context.applicationContext
@@ -185,7 +194,101 @@ class AppViewModel(context: Context, private val workManager: WorkManager) : Vie
        }
    }

-    fun dismissMessage() = mutableState.update { it.copy(message = null) }
+    fun dismissMessage() = mutableState.update { it.copy(message = null, undo = null) }
+
+    /**
+     * Every episode of a title watched or unwatched, with an Undo: a whole
+     * title's positions are what this throws away, and a mis-tap on a tile's
+     * menu should not cost them.
+     */
+    fun setTitleWatched(title: TitleRecord, watched: Boolean) {
+        val episodes = title.seasons.flatMap { it.episodes }
+        changeWatch(
+            episodes,
+            "${title.canonicalName ?: title.name} marked ${if (watched) "watched" else "unwatched"}",
+        ) { engine, episode, before ->
+            val duration = before?.durationSecs
+            engine.saveWatchState(
+                episode.shareId,
+                episode.linkId,
+                if (watched) duration ?: 0.0 else 0.0,
+                duration,
+                watched,
+            )
+        }
+    }
+
+    /**
+     * Off Continue watching by forgetting where the episode stopped — what the
+     * desktop does — with an Undo that puts the position back.
+     */
+    fun forgetPosition(title: TitleRecord, episode: EpisodeRecord) {
+        changeWatch(
+            listOf(episode),
+            "${title.canonicalName ?: title.name} removed from Continue watching",
+        ) { engine, target, before ->
+            engine.saveWatchState(target.shareId, target.linkId, 0.0, before?.durationSecs, false)
+        }
+    }
+
+    /**
+     * Off the history page: the position and the watched mark both go, which
+     * is "never played", with an Undo.
+     */
+    fun removeFromHistory(title: TitleRecord, episode: EpisodeRecord) {
+        changeWatch(
+            listOf(episode),
+            "${episode.label} of ${title.canonicalName ?: title.name} removed from history",
+        ) { engine, target, before ->
+            engine.saveWatchState(target.shareId, target.linkId, 0.0, before?.durationSecs, false)
+        }
+    }
+
+    /** Put back what the last undoable change replaced. */
+    fun undo() {
+        val snapshots = mutableState.value.undo ?: return
+        mutableState.update { it.copy(message = null, undo = null) }
+        viewModelScope.launch {
+            runCatching {
+                withContext(Dispatchers.IO) {
+                    val engine = NativeRuntime.engine()
+                    snapshots.forEach { snapshot ->
+                        val state = snapshot.state
+                        engine.saveWatchState(
+                            snapshot.shareId,
+                            snapshot.linkId,
+                            state?.positionSecs ?: 0.0,
+                            state?.durationSecs,
+                            state?.watched ?: false,
+                        )
+                    }
+                }
+            }.onFailure(::reportError)
+            reload()
+        }
+    }
+
+    private fun changeWatch(
+        episodes: List<EpisodeRecord>,
+        message: String,
+        change: (uniffi.pstr_android.AndroidEngine, EpisodeRecord, WatchStateRecord?) -> Unit,
+    ) {
+        viewModelScope.launch {
+            runCatching {
+                withContext(Dispatchers.IO) {
+                    val engine = NativeRuntime.engine()
+                    episodes.map { episode ->
+                        val before = engine.watchState(episode.shareId, episode.linkId)
+                        change(engine, episode, before)
+                        WatchSnapshot(episode.shareId, episode.linkId, before)
+                    }
+                }
+            }.onSuccess { snapshots ->
+                mutableState.update { it.copy(message = message, undo = snapshots) }
+            }.onFailure(::reportError)
+            reload()
+        }
+    }

    fun reportError(error: Throwable) {
        mutableState.update { it.copy(message = error.message ?: "Unexpected error") }
@@ -0,0 +1,139 @@
+package io.narl.protonstream.ui
+
+import androidx.compose.animation.AnimatedVisibilityScope
+import androidx.compose.animation.ExperimentalSharedTransitionApi
+import androidx.compose.animation.SharedTransitionScope
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.PaddingValues
+import androidx.compose.foundation.layout.RowScope
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.material3.TopAppBar
+import androidx.compose.material3.TopAppBarColors
+import androidx.compose.material3.TopAppBarDefaults
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.staticCompositionLocalOf
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.input.nestedscroll.nestedScroll
+import uniffi.pstr_android.EpisodeRecord
+
+/**
+ * A tab's page: its own name in an app bar, over whatever the page holds.
+ *
+ * One bar for the whole app said "proton-stream" on every page, which is a band
+ * of height spent naming the app the viewer is already in. The bar draws under
+ * the status bar itself, which is why the shell hands pages no top padding;
+ * [content] gets the rest of [padding] (the navigation bar and the mini
+ * transport) to apply as it scrolls.
+ */
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+internal fun TabPage(
+    title: String,
+    padding: PaddingValues,
+    navigationIcon: @Composable () -> Unit = {},
+    actions: @Composable RowScope.() -> Unit = {},
+    content: @Composable (PaddingValues) -> Unit,
+) {
+    // Pinned: the bar stays, and takes the container tint once the page has
+    // scrolled under it, so the edge between the two is still visible.
+    val scroll = TopAppBarDefaults.pinnedScrollBehavior()
+    Column(Modifier.fillMaxSize().nestedScroll(scroll.nestedScrollConnection)) {
+        TopAppBar(
+            title = { Text(title) },
+            navigationIcon = navigationIcon,
+            actions = actions,
+            colors = pageBarColors(),
+            scrollBehavior = scroll,
+        )
+        Box(Modifier.weight(1f)) { content(padding) }
+    }
+}
+
+/**
+ * The page's own background until something scrolls under the bar, then the
+ * container tint. A bar in `surface` from the start read as a band across the
+ * top of a page drawn in `background`.
+ */
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+internal fun pageBarColors(): TopAppBarColors = TopAppBarDefaults.topAppBarColors(
+    containerColor = MaterialTheme.colorScheme.background,
+    scrolledContainerColor = MaterialTheme.colorScheme.surfaceContainer,
+)
+
+/**
+ * The shared-element scopes the library-to-title switch runs in, or null where
+ * there is none — the two-pane layout, a screenshot, a preview. Locals rather
+ * than parameters, because the poster that animates is three calls deep in the
+ * grid and nothing between needs to know.
+ */
+@OptIn(ExperimentalSharedTransitionApi::class)
+internal val LocalSharedTransition = staticCompositionLocalOf<SharedTransitionScope?> { null }
+internal val LocalPaneVisibility = staticCompositionLocalOf<AnimatedVisibilityScope?> { null }
+
+/**
+ * A title's art as one element across the switch: the poster tapped in the
+ * grid grows into the backdrop of the page it opens, and shrinks back on the
+ * way out, so the page is visibly *that* title's rather than a new screen.
+ */
+@OptIn(ExperimentalSharedTransitionApi::class)
+@Composable
+internal fun Modifier.sharedArt(key: String): Modifier {
+    val transition = LocalSharedTransition.current ?: return this
+    val visibility = LocalPaneVisibility.current ?: return this
+    return with(transition) {
+        this@sharedArt.sharedBounds(rememberSharedContentState("art/$key"), visibility)
+    }
+}
+
+@Composable
+internal fun EmptyState(title: String, body: String) {
+    Box(Modifier.fillMaxSize(), contentAlignment = Alignment.Center) {
+        Column(horizontalAlignment = Alignment.CenterHorizontally) {
+            Text(title, style = MaterialTheme.typography.titleMedium)
+            Text(body, style = MaterialTheme.typography.bodyMedium)
+        }
+    }
+}
+
+/**
+ * Where Play on a title lands: the most recently played part-watched episode,
+ * else the first unwatched one, else the first — the desktop's `next_up`.
+ */
+internal fun nextUpIndex(playlist: List<EpisodeRecord>): Int =
+    playlist.withIndex().filter { it.value.resumeAt != null }.maxByOrNull { it.value.lastPlayed }?.index
+        ?: playlist.indexOfFirst { !it.watched }.takeIf { it >= 0 }
+        ?: 0
+
+internal fun formatBytes(bytes: ULong): String {
+    val value = bytes.toDouble()
+    return when {
+        value >= 1024 * 1024 * 1024 -> "%.1f GiB".format(value / (1024 * 1024 * 1024))
+        value >= 1024 * 1024 -> "%.1f MiB".format(value / (1024 * 1024))
+        value >= 1024 -> "%.1f KiB".format(value / 1024)
+        else -> "$bytes bytes"
+    }
+}
+
+/**
+ * What an episode row is headed with: "1. Mother and Children".
+ *
+ * The provider's name for the episode, else the name the filename gave it,
+ * else "Episode 1". The bare filename only when none of those exist — a column
+ * of `[Group] Show - S01E01.mkv` is forty rows that differ in two characters.
+ */
+internal fun EpisodeRecord.heading(position: Int): String {
+    val named = providerName ?: detail.takeIf { it != name }
+    val number = number?.toInt()
+    return when {
+        named != null && number != null -> "$number. $named"
+        named != null -> named
+        number != null -> "Episode $number"
+        else -> name.substringBeforeLast('.').ifBlank { "Episode ${position + 1}" }
+    }
+}
@@ -0,0 +1,243 @@
+package io.narl.protonstream.ui
+
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.PaddingValues
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.aspectRatio
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.width
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.items
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Close
+import androidx.compose.material.icons.filled.Pause
+import androidx.compose.material.icons.filled.PlayArrow
+import androidx.compose.material.icons.outlined.Delete
+import androidx.compose.material3.AlertDialog
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.ListItem
+import androidx.compose.material3.ListItemDefaults
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.livedata.observeAsState
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.text.style.TextOverflow
+import androidx.compose.ui.unit.dp
+import androidx.work.WorkManager
+import io.narl.protonstream.download.DownloadCoordinator
+import io.narl.protonstream.download.DownloadStateStore
+import io.narl.protonstream.download.RetainedDownload
+import io.narl.protonstream.ui.theme.AccentButton
+import io.narl.protonstream.ui.theme.AccentProgress
+import io.narl.protonstream.ui.theme.TonalButton
+import uniffi.pstr_android.OfflineRecord
+import uniffi.pstr_android.SeasonRecord
+import uniffi.pstr_android.TitleRecord
+
+/** One show's saved episodes, and the show itself where the library has it. */
+private data class OfflineGroup(val name: String, val title: TitleRecord?, val files: List<OfflineRecord>)
+
+@Composable
+internal fun DownloadsScreen(
+    state: AppUiState,
+    onRemove: (OfflineRecord) -> Unit,
+    onPause: (RetainedDownload) -> Unit,
+    onResume: (RetainedDownload) -> Unit,
+    onDeletePartial: (RetainedDownload) -> Unit,
+    padding: PaddingValues,
+) {
+    val context = LocalContext.current
+    val work = WorkManager.getInstance(context).getWorkInfosByTagLiveData(DownloadCoordinator.TAG)
+    val downloads by work.observeAsState(emptyList())
+    // Reading retained metadata on every WorkInfo transition also hydrates
+    // paused/failed/cancelled entries after WorkManager history is pruned.
+    val retained = remember(downloads) { DownloadStateStore(context).records() }
+    // Which show each saved file is from. The offline record knows its episode
+    // but not its show, and the library is the only thing that does.
+    val groups = remember(state.offline, state.titles) {
+        val shows = state.titles.flatMap { title ->
+            title.seasons.flatMap(SeasonRecord::episodes).map { "${it.shareId}/${it.linkId}" to title }
+        }.toMap()
+        state.offline
+            .groupBy { shows["${it.shareId}/${it.linkId}"] }
+            .map { (title, files) ->
+                OfflineGroup(title?.let { it.canonicalName ?: it.name } ?: "Not in the library", title, files)
+            }
+            .sortedBy { it.name }
+    }
+    // Deleting a saved episode asks first: it is the viewer's own choice to
+    // keep it, and getting it back is a download, not a tap.
+    var deleting by remember { mutableStateOf<OfflineRecord?>(null) }
+    TabPage("Downloads", padding) { body ->
+        if (retained.isEmpty() && state.offline.isEmpty()) {
+            Box(Modifier.fillMaxSize().padding(body)) {
+                EmptyState("No downloads", "Episodes, seasons and shows saved offline appear here.")
+            }
+            return@TabPage
+        }
+        LazyColumn(
+            modifier = Modifier.fillMaxSize().padding(body),
+            contentPadding = PaddingValues(bottom = 24.dp),
+        ) {
+            if (state.offline.isNotEmpty()) {
+                item(key = "summary") {
+                    Text(
+                        "${state.offline.size} ${if (state.offline.size == 1) "episode" else "episodes"} · " +
+                            "${formatBytes(state.offline.sumOf { it.size })} on this device",
+                        style = MaterialTheme.typography.bodyMedium,
+                        color = MaterialTheme.colorScheme.onSurfaceVariant,
+                        modifier = Modifier.padding(horizontal = 16.dp, vertical = 4.dp),
+                    )
+                }
+            }
+            // What is still arriving comes first: it is the part of the page
+            // that changes, and the part with something to do.
+            if (retained.isNotEmpty()) {
+                item(key = "in-progress") { SectionHeading("In progress") }
+                items(retained, key = { "partial/${it.shareId}/${it.linkId}" }) { download ->
+                    PartialRow(download, onPause, onResume, onDeletePartial)
+                }
+            }
+            // Under the show they belong to, as on desktop: a saved season is
+            // fourteen rows, and fourteen rows of "Episode 3" name nothing.
+            groups.forEach { group ->
+                item(key = "group/${group.name}") {
+                    SectionHeading(
+                        group.name,
+                        "${group.files.size} ${if (group.files.size == 1) "episode" else "episodes"} · " +
+                            formatBytes(group.files.sumOf { it.size }),
+                    )
+                }
+                items(group.files, key = { "${it.shareId}/${it.linkId}" }) { file ->
+                    SavedRow(file, group.title, onDelete = { deleting = file })
+                }
+            }
+        }
+    }
+    deleting?.let { file ->
+        AlertDialog(
+            onDismissRequest = { deleting = null },
+            title = { Text("Delete this download?") },
+            text = {
+                Text(
+                    "${file.episode?.label ?: "The episode"} (${formatBytes(file.size)}) leaves this device. " +
+                        "It still streams, and can be downloaded again.",
+                )
+            },
+            confirmButton = {
+                AccentButton(onClick = {
+                    deleting = null
+                    onRemove(file)
+                }) { Text("Delete") }
+            },
+            dismissButton = { TonalButton(onClick = { deleting = null }) { Text("Cancel") } },
+        )
+    }
+}
+
+@Composable
+private fun SectionHeading(title: String, caption: String? = null) {
+    Column(Modifier.padding(start = 16.dp, end = 16.dp, top = 20.dp, bottom = 4.dp)) {
+        Text(title, style = MaterialTheme.typography.titleMedium, maxLines = 1, overflow = TextOverflow.Ellipsis)
+        caption?.let {
+            Text(it, style = MaterialTheme.typography.bodySmall, color = MaterialTheme.colorScheme.onSurfaceVariant)
+        }
+    }
+}
+
+/** A saved episode: its still, what it is, its size, and a way to remove it. */
+@Composable
+private fun SavedRow(file: OfflineRecord, title: TitleRecord?, onDelete: () -> Unit) {
+    val episode = file.episode
+    ListItem(
+        leadingContent = {
+            RemoteArtwork(
+                episode?.stillUrl ?: title?.backdropUrl,
+                title?.name ?: file.linkId,
+                Modifier.width(96.dp).aspectRatio(16f / 9f).clip(MaterialTheme.shapes.small),
+                fallback = episode?.thumbnailSource,
+                labelled = episode == null,
+            )
+        },
+        headlineContent = {
+            Text(episode?.heading(0) ?: file.linkId, maxLines = 2, overflow = TextOverflow.Ellipsis)
+        },
+        supportingContent = {
+            Text(listOfNotNull(episode?.label, formatBytes(file.size)).joinToString(" · "))
+        },
+        trailingContent = {
+            IconButton(onClick = onDelete) {
+                Icon(Icons.Outlined.Delete, contentDescription = "Delete download")
+            }
+        },
+        colors = ListItemDefaults.colors(containerColor = Color.Transparent),
+    )
+}
+
+/**
+ * A download not yet finished: how far it has got, why it stopped if it did,
+ * and pause or resume beside cancel.
+ */
+@Composable
+private fun PartialRow(
+    download: RetainedDownload,
+    onPause: (RetainedDownload) -> Unit,
+    onResume: (RetainedDownload) -> Unit,
+    onDeletePartial: (RetainedDownload) -> Unit,
+) {
+    val active = download.status == RetainedDownload.STATUS_RUNNING ||
+        download.status == RetainedDownload.STATUS_QUEUED
+    ListItem(
+        headlineContent = { Text(download.label, maxLines = 2, overflow = TextOverflow.Ellipsis) },
+        supportingContent = {
+            Column {
+                Text(
+                    listOfNotNull(
+                        download.status.replaceFirstChar { it.uppercase() },
+                        download.total.takeIf { it > 0L }?.let {
+                            "${formatBytes(download.downloaded.toULong())} of ${formatBytes(it.toULong())}"
+                        },
+                    ).joinToString(" · "),
+                )
+                if (download.total > 0L) {
+                    AccentProgress(
+                        progress = { (download.downloaded.toFloat() / download.total).coerceIn(0f, 1f) },
+                        modifier = Modifier.fillMaxWidth().padding(top = 8.dp),
+                    )
+                }
+                download.error?.let { Text(it, color = MaterialTheme.colorScheme.error) }
+            }
+        },
+        trailingContent = {
+            Row(verticalAlignment = Alignment.CenterVertically) {
+                if (active) {
+                    IconButton(onClick = { onPause(download) }) {
+                        Icon(Icons.Default.Pause, contentDescription = "Pause download")
+                    }
+                } else {
+                    IconButton(onClick = { onResume(download) }) {
+                        Icon(Icons.Default.PlayArrow, contentDescription = "Resume download")
+                    }
+                }
+                // What has arrived so far is discarded; nothing finished is.
+                IconButton(onClick = { onDeletePartial(download) }) {
+                    Icon(Icons.Default.Close, contentDescription = "Cancel and delete what has arrived")
+                }
+            }
+        },
+        colors = ListItemDefaults.colors(containerColor = Color.Transparent),
+    )
+}
@@ -0,0 +1,183 @@
+package io.narl.protonstream.ui
+
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.PaddingValues
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.aspectRatio
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.width
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.items
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Close
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.remember
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.text.style.TextOverflow
+import androidx.compose.ui.unit.dp
+import io.narl.protonstream.ui.theme.AccentProgress
+import java.time.Instant
+import java.time.LocalDate
+import java.time.ZoneId
+import java.time.format.DateTimeFormatter
+import java.time.format.TextStyle
+import java.util.Locale
+import uniffi.pstr_android.EpisodeRecord
+import uniffi.pstr_android.SeasonRecord
+import uniffi.pstr_android.TitleRecord
+
+/** One played episode, with the title it belongs to and its place in that title's playlist. */
+internal data class Played(val title: TitleRecord, val episode: EpisodeRecord, val index: Int)
+
+/**
+ * Every episode that has been started or finished, newest first — the
+ * desktop's `Library::history`, over the records the library already holds.
+ *
+ * A row marked unwatched again sits at position zero, which is "never played"
+ * for every purpose here, so it is left out. Progress stands in for the
+ * position: it is non-zero exactly when the position is.
+ */
+internal fun history(titles: List<TitleRecord>): List<Played> =
+    titles.flatMap { title ->
+        title.seasons.flatMap(SeasonRecord::episodes).withIndex()
+            .filter { (_, episode) -> episode.watched || (episode.progress ?: 0.0) > 0.0 }
+            .map { (index, episode) -> Played(title, episode, index) }
+    }.sortedByDescending { it.episode.lastPlayed }
+
+/**
+ * "Today", "Yesterday", a weekday within the last week, then a date — how the
+ * history page heads each day.
+ */
+internal fun dayHeading(day: LocalDate, today: LocalDate, locale: Locale = Locale.getDefault()): String = when {
+    day == today -> "Today"
+    day == today.minusDays(1) -> "Yesterday"
+    day.isAfter(today.minusDays(7)) -> day.dayOfWeek.getDisplayName(TextStyle.FULL, locale)
+    day.year == today.year -> day.format(DateTimeFormatter.ofPattern("d MMMM", locale))
+    else -> day.format(DateTimeFormatter.ofPattern("d MMMM yyyy", locale))
+}
+
+@Composable
+internal fun HistoryScreen(
+    state: AppUiState,
+    onPlay: (TitleRecord, Int) -> Unit,
+    onTitle: (TitleRecord) -> Unit,
+    onRemove: (TitleRecord, EpisodeRecord) -> Unit,
+    padding: PaddingValues,
+    zone: ZoneId = remember { ZoneId.systemDefault() },
+    today: LocalDate = LocalDate.now(zone),
+) {
+    val days = remember(state.titles) {
+        history(state.titles).groupBy { Instant.ofEpochSecond(it.episode.lastPlayed).atZone(zone).toLocalDate() }
+    }
+    if (days.isEmpty()) {
+        TabPage("History", padding) { body ->
+            Box(Modifier.fillMaxSize().padding(body)) {
+                EmptyState("Nothing watched yet", "Episodes you play show up here, newest first.")
+            }
+        }
+        return
+    }
+    TabPage("History", padding) { body ->
+        LazyColumn(Modifier.fillMaxSize().padding(body), contentPadding = PaddingValues(bottom = 24.dp)) {
+            days.forEach { (day, played) ->
+                item(key = "day/$day") {
+                    Text(
+                        dayHeading(day, today),
+                        style = MaterialTheme.typography.titleSmall,
+                        color = MaterialTheme.colorScheme.primary,
+                        modifier = Modifier.padding(start = 16.dp, end = 16.dp, top = 20.dp, bottom = 4.dp),
+                    )
+                }
+                items(played, key = { "${it.episode.shareId}/${it.episode.linkId}" }) { entry ->
+                    HistoryRow(
+                        entry,
+                        onPlay = { onPlay(entry.title, entry.index) },
+                        onTitle = { onTitle(entry.title) },
+                        onRemove = { onRemove(entry.title, entry.episode) },
+                    )
+                }
+            }
+        }
+    }
+}
+
+/**
+ * The still plays the episode, the text opens its title, and the cross takes
+ * it off the page — the same three targets the desktop row has.
+ */
+@Composable
+private fun HistoryRow(entry: Played, onPlay: () -> Unit, onTitle: () -> Unit, onRemove: () -> Unit) {
+    val episode = entry.episode
+    Row(
+        Modifier.fillMaxWidth().padding(start = 16.dp, end = 4.dp, top = 6.dp, bottom = 6.dp),
+        verticalAlignment = Alignment.CenterVertically,
+    ) {
+        Box(
+            Modifier
+                .width(128.dp)
+                .aspectRatio(16f / 9f)
+                .clip(MaterialTheme.shapes.small)
+                .clickable(onClick = onPlay),
+        ) {
+            RemoteArtwork(
+                episode.stillUrl ?: entry.title.backdropUrl,
+                episode.label,
+                Modifier.fillMaxSize(),
+                fallback = episode.thumbnailSource,
+                labelled = false,
+            )
+            episode.progress?.takeIf { !episode.watched }?.let { progress ->
+                AccentProgress(
+                    progress = { progress.toFloat().coerceIn(0f, 1f) },
+                    modifier = Modifier.fillMaxWidth().align(Alignment.BottomCenter),
+                )
+            }
+        }
+        Column(Modifier.weight(1f).clickable(onClick = onTitle).padding(horizontal = 12.dp, vertical = 4.dp)) {
+            Text(
+                entry.title.canonicalName ?: entry.title.name,
+                style = MaterialTheme.typography.titleSmall,
+                maxLines = 1,
+                overflow = TextOverflow.Ellipsis,
+            )
+            Text(
+                episode.providerName?.let { "${episode.label} · $it" } ?: episode.label,
+                style = MaterialTheme.typography.bodySmall,
+                maxLines = 1,
+                overflow = TextOverflow.Ellipsis,
+            )
+            Text(
+                if (episode.watched) "Finished" else episode.stoppedAt(),
+                style = MaterialTheme.typography.bodySmall,
+                color = MaterialTheme.colorScheme.onSurfaceVariant,
+            )
+        }
+        IconButton(onClick = onRemove) {
+            Icon(Icons.Default.Close, contentDescription = "Remove from history")
+        }
+    }
+}
+
+/** "Stopped at 12:04 of 23:40", or as much of it as is known. */
+private fun EpisodeRecord.stoppedAt(): String {
+    val at = resumeAt ?: return "Started"
+    val duration = progress?.takeIf { it > 0.0 }?.let { at / it }
+    return "Stopped at ${clock(at)}" + (duration?.let { " of ${clock(it)}" } ?: "")
+}
+
+private fun clock(seconds: Double): String {
+    val total = seconds.toInt().coerceAtLeast(0)
+    val hours = total / 3_600
+    return if (hours > 0) "%d:%02d:%02d".format(hours, total % 3_600 / 60, total % 60)
+    else "%d:%02d".format(total / 60, total % 60)
+}
@@ -0,0 +1,183 @@
+package io.narl.protonstream.ui
+
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.heightIn
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.items
+import androidx.compose.material3.AlertDialog
+import androidx.compose.material3.HorizontalDivider
+import androidx.compose.material3.ListItem
+import androidx.compose.material3.ListItemDefaults
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.OutlinedTextField
+import androidx.compose.material3.RadioButton
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.semantics.Role
+import androidx.compose.ui.unit.dp
+import io.narl.protonstream.ui.theme.AccentButton
+import io.narl.protonstream.ui.theme.TonalButton
+
+/**
+ * The languages offered by name, as the three-letter tag a Matroska file
+ * carries.
+ *
+ * The same short list the desktop names tracks from (`pstr-player`'s
+ * `language_name`): what the shares this app is pointed at actually contain.
+ * mpv treats the two- and three-letter forms of a language as one, so the tag
+ * chosen here also matches a file that says "ja". Anything else is still one
+ * typed tag away.
+ */
+internal val LANGUAGES: List<Pair<String, String>> = listOf(
+    "jpn" to "Japanese",
+    "eng" to "English",
+    "ger" to "German",
+    "fre" to "French",
+    "spa" to "Spanish",
+    "ita" to "Italian",
+    "por" to "Portuguese",
+    "dut" to "Dutch",
+    "rus" to "Russian",
+    "pol" to "Polish",
+    "swe" to "Swedish",
+    "dan" to "Danish",
+    "nor" to "Norwegian",
+    "fin" to "Finnish",
+    "cze" to "Czech",
+    "hun" to "Hungarian",
+    "tur" to "Turkish",
+    "ara" to "Arabic",
+    "heb" to "Hebrew",
+    "hin" to "Hindi",
+    "kor" to "Korean",
+    "chi" to "Chinese",
+    "tha" to "Thai",
+    "vie" to "Vietnamese",
+    "ukr" to "Ukrainian",
+    "rum" to "Romanian",
+    "gre" to "Greek",
+    "ind" to "Indonesian",
+    "may" to "Malay",
+)
+
+/**
+ * "Japanese", for a tag in any of the forms a file or the desktop may have
+ * stored — "jpn", "ja", "JA-jp" — and the tag itself for one not on the list.
+ * Null is no preference.
+ */
+internal fun languageLabel(tag: String?): String {
+    val value = tag?.trim()?.takeIf(String::isNotEmpty) ?: return "No preference"
+    return languageOf(value)?.second ?: value
+}
+
+/** The listed language a tag names, matching either ISO 639 form. */
+private fun languageOf(tag: String): Pair<String, String>? {
+    val base = tag.split('-', '_').first().lowercase()
+    return LANGUAGES.firstOrNull { (code, _) -> code == base || TWO_LETTER[code] == base || terminology(code) == base }
+}
+
+/** ISO 639-2/T, for the handful whose bibliographic code differs. */
+private fun terminology(code: String): String? = when (code) {
+    "ger" -> "deu"
+    "fre" -> "fra"
+    "dut" -> "nld"
+    "cze" -> "ces"
+    "chi" -> "zho"
+    "rum" -> "ron"
+    "gre" -> "ell"
+    "may" -> "msa"
+    else -> null
+}
+
+/** ISO 639-1, the form a file or the desktop may also have stored. */
+private val TWO_LETTER = mapOf(
+    "jpn" to "ja", "eng" to "en", "ger" to "de", "fre" to "fr", "spa" to "es", "ita" to "it",
+    "por" to "pt", "dut" to "nl", "rus" to "ru", "pol" to "pl", "swe" to "sv", "dan" to "da",
+    "nor" to "no", "fin" to "fi", "cze" to "cs", "hun" to "hu", "tur" to "tr", "ara" to "ar",
+    "heb" to "he", "hin" to "hi", "kor" to "ko", "chi" to "zh", "tha" to "th", "vie" to "vi",
+    "ukr" to "uk", "rum" to "ro", "gre" to "el", "ind" to "id", "may" to "ms",
+)
+
+/**
+ * A language preference as a row, opening a list to choose from.
+ *
+ * It was a free-text field asking for "jpn or eng", which is a question only
+ * someone who has read a Matroska header can answer.
+ */
+@Composable
+internal fun LanguageSetting(headline: String, value: String?, onChange: (String?) -> Unit) {
+    var choosing by remember { mutableStateOf(false) }
+    ListItem(
+        headlineContent = { Text(headline) },
+        supportingContent = { Text(languageLabel(value)) },
+        colors = ListItemDefaults.colors(containerColor = Color.Transparent),
+        modifier = Modifier.clickable(role = Role.Button) { choosing = true },
+    )
+    if (choosing) {
+        LanguageDialog(
+            headline,
+            value,
+            onDismiss = { choosing = false },
+            onChoose = {
+                choosing = false
+                onChange(it)
+            },
+        )
+    }
+}
+
+@Composable
+private fun LanguageDialog(headline: String, value: String?, onDismiss: () -> Unit, onChoose: (String?) -> Unit) {
+    val current = value?.let(::languageOf)?.first ?: value
+    // A tag that is not on the list starts in the field, so it is shown and
+    // can be edited rather than silently replaced.
+    var typed by remember { mutableStateOf(current?.takeIf { tag -> LANGUAGES.none { it.first == tag } }.orEmpty()) }
+    AlertDialog(
+        onDismissRequest = onDismiss,
+        title = { Text(headline) },
+        text = {
+            Column {
+                LazyColumn(Modifier.fillMaxWidth().heightIn(max = 360.dp)) {
+                    item(key = "none") { LanguageOption("No preference", current == null) { onChoose(null) } }
+                    items(LANGUAGES, key = { it.first }) { (code, name) ->
+                        LanguageOption(name, current == code) { onChoose(code) }
+                    }
+                }
+                HorizontalDivider(Modifier.padding(vertical = 8.dp))
+                OutlinedTextField(
+                    value = typed,
+                    onValueChange = { typed = it },
+                    label = { Text("Another tag") },
+                    supportingText = { Text("As it appears in the file, such as \"tgl\"") },
+                    singleLine = true,
+                    modifier = Modifier.fillMaxWidth(),
+                )
+            }
+        },
+        confirmButton = {
+            AccentButton(enabled = typed.isNotBlank(), onClick = { onChoose(typed.trim().lowercase()) }) {
+                Text("Use tag")
+            }
+        },
+        dismissButton = { TonalButton(onClick = onDismiss) { Text("Cancel") } },
+    )
+}
+
+@Composable
+private fun LanguageOption(name: String, selected: Boolean, onClick: () -> Unit) {
+    ListItem(
+        headlineContent = { Text(name, style = MaterialTheme.typography.bodyLarge) },
+        leadingContent = { RadioButton(selected = selected, onClick = null) },
+        colors = ListItemDefaults.colors(containerColor = Color.Transparent),
+        modifier = Modifier.clickable(role = Role.RadioButton, onClick = onClick),
+    )
+}
@@ -0,0 +1,565 @@
+package io.narl.protonstream.ui
+
+import androidx.compose.foundation.background
+import androidx.activity.compose.BackHandler
+import androidx.compose.foundation.text.KeyboardOptions
+import androidx.compose.material.icons.automirrored.filled.ArrowBack
+import androidx.compose.material.icons.filled.Refresh
+import androidx.compose.material3.LargeTopAppBar
+import androidx.compose.material3.TopAppBar
+import androidx.compose.material3.TopAppBarDefaults
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.saveable.rememberSaveable
+import androidx.compose.ui.focus.FocusRequester
+import androidx.compose.ui.focus.focusRequester
+import androidx.compose.ui.input.nestedscroll.nestedScroll
+import androidx.compose.ui.text.input.ImeAction
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.Row
+import androidx.compose.ui.graphics.Brush
+import io.narl.protonstream.ui.theme.AccentButton
+import io.narl.protonstream.ui.theme.TonalButton
+import java.time.LocalDate
+import androidx.compose.foundation.combinedClickable
+import androidx.compose.material.icons.filled.CheckCircle
+import androidx.compose.material.icons.filled.Download
+import androidx.compose.material.icons.filled.Edit
+import androidx.compose.material.icons.filled.Info
+import androidx.compose.material.icons.filled.PlayArrow
+import androidx.compose.material.icons.filled.RemoveCircleOutline
+import androidx.compose.material.icons.outlined.CheckCircle
+import androidx.compose.material3.ListItem
+import androidx.compose.material3.ListItemDefaults
+import androidx.compose.material3.ModalBottomSheet
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.graphics.vector.ImageVector
+import androidx.compose.ui.platform.LocalContext
+import io.narl.protonstream.download.DownloadCoordinator
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.PaddingValues
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.aspectRatio
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.width
+import androidx.compose.foundation.lazy.LazyRow
+import androidx.compose.foundation.lazy.grid.GridCells
+import androidx.compose.foundation.lazy.grid.GridItemSpan
+import androidx.compose.foundation.lazy.grid.LazyVerticalGrid
+import androidx.compose.foundation.lazy.grid.items
+import androidx.compose.foundation.lazy.items
+import androidx.compose.foundation.shape.CircleShape
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Close
+import androidx.compose.material.icons.filled.Search
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.material3.TextField
+import androidx.compose.material3.TextFieldDefaults
+import androidx.compose.material3.pulltorefresh.PullToRefreshBox
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.remember
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.style.TextOverflow
+import androidx.compose.ui.unit.dp
+import io.narl.protonstream.ui.theme.AccentProgress
+import uniffi.pstr_android.EpisodeRecord
+import uniffi.pstr_android.SeasonRecord
+import uniffi.pstr_android.TitleRecord
+import uniffi.pstr_android.TitleType
+
+/**
+ * How many shows the continue-watching shelf holds.
+ *
+ * A shelf is a shortcut, not a second library: past about this many it is
+ * quicker to search for the thing than to scroll the shelf looking for it.
+ */
+private const val CONTINUE_WATCHING_MAX = 12
+
+/** One row of the continue-watching shelf: which episode, and where it sits. */
+private data class Resumable(val title: TitleRecord, val episode: EpisodeRecord, val index: Int)
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+internal fun LibraryScreen(
+    state: AppUiState,
+    onSearch: (String) -> Unit,
+    onResume: (TitleRecord, Int) -> Unit,
+    onTitle: (TitleRecord) -> Unit,
+    onRefresh: () -> Unit,
+    onSetTitleWatched: (TitleRecord, Boolean) -> Unit,
+    onForgetPosition: (TitleRecord, EpisodeRecord) -> Unit,
+    padding: PaddingValues,
+    onMatchChanged: () -> Unit = {},
+    onError: (Throwable) -> Unit = {},
+) {
+    val context = LocalContext.current
+    // What a long press opened a menu for: a title, or a Continue watching card.
+    var menuFor by remember { mutableStateOf<TitleRecord?>(null) }
+    var menuResume by remember { mutableStateOf<Resumable?>(null) }
+    var matching by remember { mutableStateOf<TitleRecord?>(null) }
+    // Most recently played first, one episode per show: a shelf that lists four
+    // episodes of the same series is a shelf with room for nothing else.
+    val resumable = remember(state.titles) {
+        state.titles.mapNotNull { title ->
+            val playlist = title.seasons.flatMap(SeasonRecord::episodes)
+            playlist.withIndex()
+                .filter { it.value.resumeAt != null && !it.value.watched }
+                .maxByOrNull { it.value.lastPlayed }
+                ?.let { Resumable(title, it.value, it.index) }
+        }.sortedByDescending { it.episode.lastPlayed }.take(CONTINUE_WATCHING_MAX)
+    }
+    // Search is an icon until it is wanted: a permanent field above the
+    // library spent a band of every visit on something used in few of them.
+    var searching by rememberSaveable { mutableStateOf(state.query.isNotEmpty()) }
+    val closeSearch = {
+        searching = false
+        onSearch("")
+    }
+    BackHandler(enabled = searching, onBack = closeSearch)
+    // The large title folds into the bar as the grid scrolls, and comes back
+    // only at the top: the page says what it is on arrival, then gets out of
+    // the way.
+    val scroll = TopAppBarDefaults.exitUntilCollapsedScrollBehavior()
+    Column(Modifier.fillMaxSize().nestedScroll(scroll.nestedScrollConnection)) {
+        if (searching) {
+            SearchBar(state.query, onSearch, closeSearch)
+        } else {
+            LargeTopAppBar(
+                title = { Text("Library") },
+                actions = {
+                    IconButton(onClick = { searching = true }) {
+                        Icon(Icons.Default.Search, contentDescription = "Search library")
+                    }
+                    // Pull to refresh is the gesture; the icon stays for a
+                    // viewer who does not know it.
+                    IconButton(onClick = onRefresh, enabled = !state.refreshing) {
+                        Icon(Icons.Default.Refresh, contentDescription = "Refresh")
+                    }
+                },
+                colors = pageBarColors(),
+                scrollBehavior = scroll,
+            )
+        }
+        PullToRefreshBox(
+            isRefreshing = state.refreshing,
+            onRefresh = onRefresh,
+            modifier = Modifier.weight(1f).padding(padding),
+        ) {
+            when {
+                state.loading -> LibrarySkeleton()
+                state.titles.isEmpty() && state.query.isNotBlank() -> EmptyState(
+                    "Nothing matches",
+                    "No title in the library is called “${state.query.trim()}”.",
+                )
+                state.titles.isEmpty() -> EmptyState(
+                    "Your library is empty",
+                    "Add a Proton Drive public link under Shares, then refresh.",
+                )
+                else -> LibraryGrid(
+                    state,
+                    resumable,
+                    onResume,
+                    onTitle,
+                    onTitleMenu = { menuFor = it },
+                    onResumeMenu = { menuResume = it },
+                )
+            }
+        }
+    }
+    menuFor?.let { title ->
+        val playlist = title.seasons.flatMap(SeasonRecord::episodes)
+        val allWatched = title.episodeCount > 0uL && title.watchedCount == title.episodeCount
+        TileMenu(title.canonicalName ?: title.name, title.caption(), onDismiss = { menuFor = null }) {
+            MenuRow(Icons.Default.PlayArrow, if (playlist.any { it.resumeAt != null }) "Resume" else "Play") {
+                onResume(title, nextUpIndex(playlist))
+            }
+            MenuRow(Icons.Default.Info, "Open") { onTitle(title) }
+            MenuRow(Icons.Default.Download, "Download all") { DownloadCoordinator.enqueue(context, playlist) }
+            MenuRow(
+                if (allWatched) Icons.Outlined.CheckCircle else Icons.Default.CheckCircle,
+                if (allWatched) "Mark unwatched" else "Mark watched",
+            ) { onSetTitleWatched(title, !allWatched) }
+            // The same search the title page offers, for the tile that is
+            // plainly wrong — the wrong poster is what the grid shows.
+            MenuRow(Icons.Default.Edit, "Change match") { matching = title }
+        }
+    }
+    matching?.let { title ->
+        ChangeMatchDialog(
+            title = title,
+            onDismiss = { matching = null },
+            onChanged = {
+                matching = null
+                onMatchChanged()
+            },
+            onError = onError,
+        )
+    }
+    menuResume?.let { entry ->
+        TileMenu(
+            entry.title.canonicalName ?: entry.title.name,
+            entry.episode.label,
+            onDismiss = { menuResume = null },
+        ) {
+            MenuRow(Icons.Default.PlayArrow, "Resume") { onResume(entry.title, entry.index) }
+            MenuRow(Icons.Default.Info, "Open") { onTitle(entry.title) }
+            MenuRow(Icons.Default.RemoveCircleOutline, "Remove from Continue watching") {
+                onForgetPosition(entry.title, entry.episode)
+            }
+        }
+    }
+}
+
+/**
+ * The bar while searching: back closes the search and clears it, and the field
+ * takes the keyboard as soon as it opens, since opening it is asking to type.
+ */
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+private fun SearchBar(query: String, onSearch: (String) -> Unit, onClose: () -> Unit) {
+    val focus = remember { FocusRequester() }
+    LaunchedEffect(Unit) { focus.requestFocus() }
+    TopAppBar(
+        navigationIcon = {
+            IconButton(onClick = onClose) {
+                Icon(Icons.AutoMirrored.Filled.ArrowBack, contentDescription = "Close search")
+            }
+        },
+        title = {
+            // A filled pill rather than an outlined form field: search is how
+            // the page is navigated, not a value being entered.
+            TextField(
+                value = query,
+                onValueChange = onSearch,
+                modifier = Modifier.fillMaxWidth().padding(end = 8.dp).focusRequester(focus),
+                singleLine = true,
+                shape = CircleShape,
+                placeholder = { Text("Search library") },
+                trailingIcon = {
+                    if (query.isNotEmpty()) {
+                        IconButton(onClick = { onSearch("") }) {
+                            Icon(Icons.Default.Close, contentDescription = "Clear search")
+                        }
+                    }
+                },
+                keyboardOptions = KeyboardOptions(imeAction = ImeAction.Search),
+                colors = TextFieldDefaults.colors(
+                    focusedIndicatorColor = Color.Transparent,
+                    unfocusedIndicatorColor = Color.Transparent,
+                    disabledIndicatorColor = Color.Transparent,
+                ),
+            )
+        },
+        colors = pageBarColors(),
+    )
+}
+
+/**
+ * A long press's menu, from the bottom of the screen where the thumb already
+ * is. Each row closes it before doing its thing.
+ */
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+private fun TileMenu(
+    heading: String,
+    caption: String,
+    onDismiss: () -> Unit,
+    rows: @Composable MenuScope.() -> Unit,
+) {
+    ModalBottomSheet(onDismissRequest = onDismiss) {
+        Column(Modifier.padding(bottom = 24.dp)) {
+            Text(
+                heading,
+                style = MaterialTheme.typography.titleMedium,
+                maxLines = 1,
+                overflow = TextOverflow.Ellipsis,
+                modifier = Modifier.padding(horizontal = 24.dp),
+            )
+            Text(
+                caption,
+                style = MaterialTheme.typography.bodySmall,
+                color = MaterialTheme.colorScheme.onSurfaceVariant,
+                modifier = Modifier.padding(start = 24.dp, end = 24.dp, bottom = 8.dp),
+            )
+            MenuScope(onDismiss).rows()
+        }
+    }
+}
+
+private class MenuScope(val dismiss: () -> Unit)
+
+@Composable
+private fun MenuScope.MenuRow(icon: ImageVector, label: String, onClick: () -> Unit) {
+    ListItem(
+        headlineContent = { Text(label) },
+        leadingContent = { Icon(icon, contentDescription = null) },
+        colors = ListItemDefaults.colors(containerColor = Color.Transparent),
+        modifier = Modifier.clickable { dismiss(); onClick() }.padding(horizontal = 8.dp),
+    )
+}
+
+@Composable
+private fun LibraryGrid(
+    state: AppUiState,
+    resumable: List<Resumable>,
+    onResume: (TitleRecord, Int) -> Unit,
+    onTitle: (TitleRecord) -> Unit,
+    onTitleMenu: (TitleRecord) -> Unit,
+    onResumeMenu: (Resumable) -> Unit,
+) {
+    // Posters, three across on a phone. Cropped backdrops at full width fitted
+    // two titles to a screen, which is a library read one row at a time.
+    LazyVerticalGrid(
+        columns = GridCells.Adaptive(108.dp),
+        modifier = Modifier.fillMaxSize(),
+        horizontalArrangement = Arrangement.spacedBy(12.dp),
+        verticalArrangement = Arrangement.spacedBy(16.dp),
+        contentPadding = PaddingValues(start = 16.dp, end = 16.dp, top = 8.dp, bottom = 24.dp),
+    ) {
+        // Above the grid, and only when there is something in it: what a viewer
+        // opening the app wants is almost always the thing they were part way
+        // through. Inside the grid rather than pinned over it, so the shelf
+        // scrolls away with the rest.
+        val featured = if (state.query.isBlank()) featured(state.titles, resumable) else null
+        featured?.let { title ->
+            item(key = "featured", span = { GridItemSpan(maxLineSpan) }) {
+                FeaturedBanner(
+                    title,
+                    resume = resumable.firstOrNull { it.title.key == title.key },
+                    onPlay = { onResume(title, it) },
+                    onOpen = { onTitle(title) },
+                )
+            }
+        }
+        if (state.query.isBlank() && resumable.isNotEmpty()) {
+            item(key = "continue-watching", span = { GridItemSpan(maxLineSpan) }) {
+                Column {
+                    Text("Continue watching", style = MaterialTheme.typography.titleMedium)
+                    LazyRow(
+                        horizontalArrangement = Arrangement.spacedBy(12.dp),
+                        contentPadding = PaddingValues(top = 10.dp),
+                    ) {
+                        items(resumable, key = { "${it.episode.shareId}/${it.episode.linkId}" }) { entry ->
+                            ContinueCard(
+                                entry,
+                                onClick = { onResume(entry.title, entry.index) },
+                                onLongClick = { onResumeMenu(entry) },
+                            )
+                        }
+                    }
+                }
+            }
+            item(key = "library-heading", span = { GridItemSpan(maxLineSpan) }) {
+                Text("All titles", style = MaterialTheme.typography.titleMedium, modifier = Modifier.padding(top = 8.dp))
+            }
+        }
+        items(state.titles, key = { it.key }) { title ->
+            PosterTile(title, onClick = { onTitle(title) }, onLongClick = { onTitleMenu(title) })
+        }
+    }
+}
+
+/**
+ * The grid's shape before the catalog has answered: posters and their two
+ * lines of text as blocks, so the page does not jump when the titles land.
+ */
+@Composable
+private fun LibrarySkeleton() {
+    LazyVerticalGrid(
+        columns = GridCells.Adaptive(108.dp),
+        modifier = Modifier.fillMaxSize(),
+        horizontalArrangement = Arrangement.spacedBy(12.dp),
+        verticalArrangement = Arrangement.spacedBy(16.dp),
+        contentPadding = PaddingValues(start = 16.dp, end = 16.dp, top = 8.dp, bottom = 24.dp),
+        userScrollEnabled = false,
+    ) {
+        items(SKELETON_TILES) {
+            Column {
+                Skeleton(Modifier.fillMaxWidth().aspectRatio(2f / 3f).clip(MaterialTheme.shapes.medium))
+                Spacer(Modifier.height(8.dp))
+                Skeleton(Modifier.fillMaxWidth(0.8f).height(12.dp).clip(MaterialTheme.shapes.small))
+                Spacer(Modifier.height(6.dp))
+                Skeleton(Modifier.fillMaxWidth(0.5f).height(10.dp).clip(MaterialTheme.shapes.small))
+            }
+        }
+    }
+}
+
+/** Enough placeholder tiles to fill a tablet's first screen. */
+private const val SKELETON_TILES = 18
+
+/**
+ * The title the banner shows: the one watched last, or with nothing part
+ * watched, one of the titles the provider has a backdrop for, turning over
+ * once a day — the desktop's `featured`.
+ */
+private fun featured(titles: List<TitleRecord>, resumable: List<Resumable>): TitleRecord? {
+    resumable.firstOrNull()?.let { return it.title }
+    val pictured = titles.filter { it.backdropUrl != null }
+    if (pictured.isEmpty()) return null
+    return pictured[(LocalDate.now().toEpochDay() % pictured.size).toInt()]
+}
+
+/** Large art behind the name, rating, genres and three lines of synopsis. */
+@Composable
+private fun FeaturedBanner(title: TitleRecord, resume: Resumable?, onPlay: (Int) -> Unit, onOpen: () -> Unit) {
+    val playlist = remember(title) { title.seasons.flatMap(SeasonRecord::episodes) }
+    Box(Modifier.fillMaxWidth().aspectRatio(4f / 3f).clip(MaterialTheme.shapes.large)) {
+        RemoteArtwork(
+            title.backdropUrl ?: title.posterUrl,
+            title.canonicalName ?: title.name,
+            Modifier.fillMaxSize(),
+            fallback = title.thumbnailSource,
+            labelled = false,
+        )
+        Box(
+            Modifier.fillMaxSize().background(
+                Brush.verticalGradient(0.35f to Color.Transparent, 1f to Color.Black.copy(alpha = 0.85f)),
+            ),
+        )
+        Column(Modifier.align(Alignment.BottomStart).padding(16.dp)) {
+            Text(
+                title.canonicalName ?: title.name,
+                style = MaterialTheme.typography.headlineMedium,
+                color = Color.White,
+                maxLines = 2,
+                overflow = TextOverflow.Ellipsis,
+            )
+            Text(
+                listOfNotNull(
+                    title.rating?.let { "★ %.1f".format(it) },
+                    title.genres.takeIf { it.isNotEmpty() }?.take(3)?.joinToString(", "),
+                ).joinToString("  ·  ").ifEmpty { title.caption() },
+                style = MaterialTheme.typography.bodySmall,
+                color = Color.White.copy(alpha = 0.8f),
+            )
+            title.overview?.let {
+                Text(
+                    it.trim(),
+                    style = MaterialTheme.typography.bodySmall,
+                    color = Color.White.copy(alpha = 0.8f),
+                    maxLines = 3,
+                    overflow = TextOverflow.Ellipsis,
+                    modifier = Modifier.padding(top = 6.dp),
+                )
+            }
+            Row(horizontalArrangement = Arrangement.spacedBy(8.dp), modifier = Modifier.padding(top = 12.dp)) {
+                AccentButton(onClick = { onPlay(resume?.index ?: nextUpIndex(playlist)) }) {
+                    Icon(Icons.Default.PlayArrow, contentDescription = null)
+                    Spacer(Modifier.width(6.dp))
+                    Text(if (resume != null) "Resume" else "Play")
+                }
+                TonalButton(onClick = onOpen) { Text("More info") }
+            }
+        }
+    }
+}
+
+/** A part-watched episode: its still, where it was left, and what is left of it. */
+@Composable
+private fun ContinueCard(entry: Resumable, onClick: () -> Unit, onLongClick: () -> Unit) {
+    Column(
+        Modifier
+            .width(220.dp)
+            .clip(MaterialTheme.shapes.medium)
+            .combinedClickable(onClick = onClick, onLongClick = onLongClick),
+    ) {
+        Box(Modifier.fillMaxWidth().aspectRatio(16f / 9f).clip(MaterialTheme.shapes.medium)) {
+            RemoteArtwork(
+                entry.episode.stillUrl ?: entry.title.backdropUrl,
+                entry.title.canonicalName ?: entry.title.name,
+                Modifier.fillMaxSize(),
+                fallback = entry.episode.thumbnailSource,
+            )
+            entry.episode.progress?.let { progress ->
+                AccentProgress(
+                    progress = { progress.toFloat().coerceIn(0f, 1f) },
+                    modifier = Modifier.fillMaxWidth().align(Alignment.BottomCenter),
+                )
+            }
+        }
+        Text(
+            entry.title.canonicalName ?: entry.title.name,
+            fontWeight = FontWeight.SemiBold,
+            maxLines = 1,
+            overflow = TextOverflow.Ellipsis,
+            modifier = Modifier.padding(top = 8.dp),
+        )
+        Text(
+            listOfNotNull(entry.episode.label, entry.episode.timeLeft()).joinToString(" · "),
+            style = MaterialTheme.typography.bodySmall,
+            color = MaterialTheme.colorScheme.onSurfaceVariant,
+            maxLines = 1,
+            overflow = TextOverflow.Ellipsis,
+        )
+    }
+}
+
+/** One title: its poster, and its name and size under it rather than in a card. */
+@Composable
+private fun PosterTile(title: TitleRecord, onClick: () -> Unit, onLongClick: () -> Unit) {
+    Column(
+        Modifier
+            .clip(MaterialTheme.shapes.medium)
+            .combinedClickable(onClick = onClick, onLongClick = onLongClick),
+    ) {
+        RemoteArtwork(
+            title.posterUrl ?: title.backdropUrl,
+            title.canonicalName ?: title.name,
+            Modifier.sharedArt(title.key).fillMaxWidth().aspectRatio(2f / 3f).clip(MaterialTheme.shapes.medium),
+            fallback = title.thumbnailSource,
+        )
+        Spacer(Modifier.height(6.dp))
+        Text(
+            title.canonicalName ?: title.name,
+            style = MaterialTheme.typography.bodyMedium,
+            fontWeight = FontWeight.SemiBold,
+            maxLines = 2,
+            overflow = TextOverflow.Ellipsis,
+        )
+        // Two lines, not one: at a large font scale "2023 · 7 episodes" does
+        // not fit a poster's width, and one line cut it to "2023 · 7".
+        Text(
+            title.caption(),
+            style = MaterialTheme.typography.bodySmall,
+            color = MaterialTheme.colorScheme.onSurfaceVariant,
+            maxLines = 2,
+            overflow = TextOverflow.Ellipsis,
+        )
+    }
+}
+
+/** "2023 · 11 episodes", or "1988 · Film" — never "1 episodes". */
+private fun TitleRecord.caption(): String = listOfNotNull(
+    (metadataYear ?: year)?.toString(),
+    when {
+        (metadataKind ?: kind) == TitleType.FILM && episodeCount == 1uL -> "Film"
+        episodeCount == 1uL -> "1 episode"
+        else -> "$episodeCount episodes"
+    },
+).joinToString(" · ")
+
+/**
+ * "12 min left", from where the episode was left and how far through that is.
+ * Null when either is unknown — a guess would be worse than no figure.
+ */
+private fun EpisodeRecord.timeLeft(): String? {
+    val at = resumeAt ?: return null
+    val fraction = progress?.takeIf { it > 0.0 && it < 1.0 } ?: return null
+    val minutes = ((at / fraction - at) / 60).toInt()
+    return if (minutes < 1) "under a minute left" else "$minutes min left"
+}
@@ -6,8 +6,13 @@ import android.graphics.BitmapFactory
 import android.util.LruCache
 import androidx.compose.foundation.Image
 import androidx.compose.foundation.background
+import androidx.compose.animation.core.RepeatMode
+import androidx.compose.animation.core.animateFloat
+import androidx.compose.animation.core.infiniteRepeatable
+import androidx.compose.animation.core.rememberInfiniteTransition
+import androidx.compose.animation.core.tween
 import androidx.compose.foundation.layout.Box
-import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.BoxWithConstraints
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
@@ -16,12 +21,19 @@ import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.setValue
+import androidx.compose.runtime.staticCompositionLocalOf
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Brush
+import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.graphics.ImageBitmap
+import androidx.compose.ui.graphics.graphicsLayer
+import androidx.compose.ui.graphics.lerp
 import androidx.compose.ui.graphics.asImageBitmap
 import androidx.compose.ui.layout.ContentScale
 import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.platform.LocalDensity
+import androidx.compose.ui.text.font.FontWeight
 import io.narl.protonstream.native.NativeRuntime
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.withContext
@@ -64,7 +76,9 @@ internal val EpisodeRecord.thumbnailSource: ThumbnailSource
 *
 * [fallback] is used only when there is no provider artwork or it fails to
 * load, which — with metadata off — is the common case rather than the rare
- * one.
+ * one. Until either answers, the box pulses as a skeleton; when neither has
+ * anything, it shows [ArtworkPlaceholder] rather than an empty card — without
+ * initials when [labelled] is false, for art with the name already over it.
 */
@Composable
 internal fun RemoteArtwork(
@@ -72,19 +86,98 @@ internal fun RemoteArtwork(
    description: String,
    modifier: Modifier = Modifier,
    fallback: ThumbnailSource? = null,
+    labelled: Boolean = true,
 ) {
    val context = LocalContext.current
-    var image by remember(url, fallback) { mutableStateOf<ImageBitmap?>(null) }
-    LaunchedEffect(url, fallback) {
-        image = (loadArtwork(context, url) ?: loadThumbnail(fallback))?.asImageBitmap()
+    val enabled = LocalArtworkLoading.current
+    var image by remember(url, fallback) { mutableStateOf<ArtworkLoad>(ArtworkLoad.Pending) }
+    LaunchedEffect(url, fallback, enabled) {
+        if (!enabled) {
+            image = ArtworkLoad.Missing
+            return@LaunchedEffect
+        }
+        image = (loadArtwork(context, url) ?: loadThumbnail(fallback))
+            ?.let { ArtworkLoad.Loaded(it.asImageBitmap()) }
+            ?: ArtworkLoad.Missing
    }
-    Box(modifier.background(MaterialTheme.colorScheme.surfaceVariant), contentAlignment = Alignment.Center) {
-        image?.let {
-            Image(it, description, Modifier.fillMaxSize(), contentScale = ContentScale.Crop)
-        } ?: Text("▶", style = MaterialTheme.typography.displaySmall)
+    when (val loaded = image) {
+        ArtworkLoad.Pending -> Skeleton(modifier)
+        ArtworkLoad.Missing -> ArtworkPlaceholder(description, modifier, labelled)
+        is ArtworkLoad.Loaded -> Image(loaded.image, description, modifier, contentScale = ContentScale.Crop)
    }
 }

+private sealed interface ArtworkLoad {
+    data object Pending : ArtworkLoad
+    data object Missing : ArtworkLoad
+    data class Loaded(val image: ImageBitmap) : ArtworkLoad
+}
+
+/**
+ * Whether [RemoteArtwork] fetches anything at all.
+ *
+ * Off in the screenshot tests: there is no bridge on the host, and whether a
+ * failed fetch lands before or after the capture would decide between a
+ * skeleton and a placeholder in the committed image.
+ */
+internal val LocalArtworkLoading = staticCompositionLocalOf { true }
+
+/**
+ * Something being loaded: the surface tint, breathing.
+ *
+ * A spinner per tile is a grid of spinners; a shape where the poster will be
+ * says what is coming and where, and settles the layout before it arrives.
+ */
+@Composable
+internal fun Skeleton(modifier: Modifier = Modifier) {
+    val pulse by rememberInfiniteTransition(label = "skeleton").animateFloat(
+        initialValue = 0.55f,
+        targetValue = 1f,
+        animationSpec = infiniteRepeatable(tween(800), RepeatMode.Reverse),
+        label = "skeleton alpha",
+    )
+    Box(modifier.graphicsLayer { alpha = pulse }.background(MaterialTheme.colorScheme.surfaceVariant))
+}
+
+/**
+ * Art for a title that has none: the accent as a gradient, and its initials.
+ *
+ * A black card with a play triangle on it said nothing about which title it
+ * was, so a grid of unmatched titles was a grid of identical cards. Each name
+ * sets where on the accent ramp its gradient starts, so neighbours differ
+ * while every one stays in the theme's colours.
+ */
+@Composable
+internal fun ArtworkPlaceholder(name: String, modifier: Modifier = Modifier, labelled: Boolean = true) {
+    val scheme = MaterialTheme.colorScheme
+    val brush = remember(name, scheme.primary, scheme.secondary) {
+        val start = lerp(scheme.primary, scheme.secondary, (name.hashCode().mod(5)) / 4f)
+        Brush.linearGradient(listOf(start, lerp(start, Color.Black, 0.55f)))
+    }
+    BoxWithConstraints(modifier.background(brush), contentAlignment = Alignment.Center) {
+        if (!labelled) return@BoxWithConstraints
+        val size = with(LocalDensity.current) { (minOf(maxWidth, maxHeight) * 0.3f).toSp() }
+        Text(
+            initials(name),
+            color = Color.White.copy(alpha = 0.9f),
+            fontSize = size,
+            fontWeight = FontWeight.SemiBold,
+            maxLines = 1,
+        )
+    }
+}
+
+/**
+ * "Oshi no Ko" is "OK", "Akira" is "A": the first letters of up to two
+ * capitalised words, so particles and articles in a romanised name do not
+ * take a slot. A name with no capitals uses its first two words.
+ */
+internal fun initials(name: String): String {
+    val words = name.split(' ', '-', '_', '.', ':').filter { word -> word.firstOrNull()?.isLetterOrDigit() == true }
+    val picked = words.filter { it.first().isUpperCase() || it.first().isDigit() }.ifEmpty { words }
+    return picked.take(2).joinToString("") { it.first().uppercase() }
+}
+
 /**
 * The same HTTPS-only fetch behind the library grid, reusable off the composition.
 *
@@ -0,0 +1,593 @@
+package io.narl.protonstream.ui
+
+import androidx.activity.compose.BackHandler
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.ColumnScope
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.automirrored.filled.ArrowBack
+import androidx.compose.material.icons.automirrored.filled.ManageSearch
+import androidx.compose.material.icons.filled.Info
+import androidx.compose.material.icons.filled.Palette
+import androidx.compose.material.icons.filled.PlayCircle
+import androidx.compose.material.icons.filled.Storage
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.runtime.saveable.rememberSaveable
+import androidx.compose.ui.graphics.vector.ImageVector
+import androidx.compose.foundation.border
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.PaddingValues
+import androidx.compose.foundation.layout.FlowRow
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.heightIn
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.layout.width
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.LazyRow
+import androidx.compose.foundation.shape.CircleShape
+import androidx.compose.foundation.lazy.items
+import androidx.compose.foundation.verticalScroll
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.lazy.grid.items
+import androidx.compose.material3.AlertDialog
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.OutlinedTextField
+import androidx.compose.material3.Switch
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.rememberCoroutineScope
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.text.input.PasswordVisualTransformation
+import androidx.compose.foundation.text.KeyboardOptions
+import androidx.compose.ui.text.input.KeyboardType
+import androidx.compose.ui.window.DialogProperties
+import androidx.compose.ui.window.SecureFlagPolicy
+import androidx.compose.ui.unit.dp
+import io.narl.protonstream.settings.SettingsStore
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
+import io.narl.protonstream.download.DownloadCoordinator
+import io.narl.protonstream.native.NativeRuntime
+import io.narl.protonstream.ui.theme.AccentButton
+import io.narl.protonstream.ui.theme.AppearanceState
+import io.narl.protonstream.ui.theme.EdgedButton
+import io.narl.protonstream.ui.theme.TonalButton
+import uniffi.pstr_android.MetadataProvider
+import uniffi.pstr_android.FlavorChoice
+import uniffi.pstr_android.AppearanceRecord
+import uniffi.pstr_android.AccentChoice
+import uniffi.pstr_android.PlaybackPrefsRecord
+import androidx.compose.material3.ListItem
+import androidx.compose.material3.ListItemDefaults
+import androidx.compose.material3.FilterChip
+import androidx.compose.foundation.selection.toggleable
+import androidx.compose.ui.semantics.Role
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.height
+import io.narl.protonstream.ui.theme.AccentProgress
+
+@Composable
+internal fun SettingsScreen(
+    state: AppUiState,
+    onSaveMetadata: (Boolean, MetadataProvider, String, String) -> Unit,
+    onMatchAgain: () -> Unit,
+    onClearCache: () -> Unit,
+    onRemoveAllOffline: () -> Unit,
+    padding: PaddingValues,
+    initialPage: SettingsPage? = null,
+    // A parameter so the screenshot tests can pin it: read from the package,
+    // every version bump changed the committed image of this page.
+    version: String = appVersion(),
+) {
+    val context = LocalContext.current
+    val settings = remember { SettingsStore(context) }
+    var wifiOnly by remember { mutableStateOf(settings.wifiOnly) }
+    var backgroundAudio by remember { mutableStateOf(settings.backgroundAudio) }
+    var hardwareDecoding by remember { mutableStateOf(settings.hardwareDecoding) }
+    var cacheBudgetGib by remember { mutableStateOf(settings.cacheBudgetGib) }
+    // Playback preferences are the shared store's, not this app's: they are the
+    // same file the desktop client reads, so a language chosen on one is the
+    // language the other starts in.
+    var prefs by remember { mutableStateOf<PlaybackPrefsRecord?>(null) }
+    val scope = rememberCoroutineScope()
+    fun update(change: (PlaybackPrefsRecord) -> PlaybackPrefsRecord) {
+        val next = change(prefs ?: return)
+        prefs = next
+        scope.launch(Dispatchers.IO) {
+            runCatching { NativeRuntime.engine().setPlaybackPrefs(next) }
+        }
+    }
+    LaunchedEffect(Unit) {
+        runCatching { withContext(Dispatchers.IO) { NativeRuntime.engine().playbackPrefs() } }
+            .onSuccess { prefs = it }
+    }
+    var confirmDelete by remember { mutableStateOf(false) }
+    var showMetadata by remember { mutableStateOf(false) }
+    var legalDocument by remember { mutableStateOf<LegalDocument?>(null) }
+    // One row per area on the first page, each opening its own page: grouped
+    // on one page, the storage controls sat a long scroll below playback, and
+    // every setting added made the rest harder to find.
+    var page by rememberSaveable { mutableStateOf(initialPage) }
+    BackHandler(enabled = page != null) { page = null }
+    val back: @Composable () -> Unit = {
+        IconButton(onClick = { page = null }) {
+            Icon(Icons.AutoMirrored.Filled.ArrowBack, contentDescription = "Back to settings")
+        }
+    }
+    when (page) {
+        null -> TabPage("Settings", padding) { body ->
+            Column(Modifier.fillMaxSize().padding(body).verticalScroll(rememberScrollState())) {
+                SettingsPage.entries.forEach { entry ->
+                    ListItem(
+                        headlineContent = { Text(entry.title) },
+                        supportingContent = {
+                            Text(
+                                when (entry) {
+                                    SettingsPage.Playback -> "Autoplay, languages and decoding"
+                                    SettingsPage.Storage -> "${formatBytes(state.storage.cacheBytes)} cached · " +
+                                        "${state.storage.offlineCount} offline"
+                                    SettingsPage.Appearance -> "Palette, accent and gradient"
+                                    SettingsPage.Metadata -> if (state.metadataSettings.enabled) {
+                                        "On · ${state.metadataSettings.provider.displayName()}"
+                                    } else {
+                                        "Off"
+                                    }
+                                    SettingsPage.About -> "Version $version · licences"
+                                },
+                            )
+                        },
+                        leadingContent = { Icon(entry.icon, contentDescription = null) },
+                        colors = ListItemDefaults.colors(containerColor = Color.Transparent),
+                        modifier = Modifier.clickable { page = entry },
+                    )
+                }
+            }
+        }
+        SettingsPage.Playback -> SettingsSubPage(SettingsPage.Playback, padding, back) {
+            prefs?.let { current ->
+                SettingSwitch(
+                    "Autoplay next episode",
+                    "Starts the next episode when the credits begin",
+                    current.autoplayNext,
+                ) { on -> update { it.copy(autoplayNext = on) } }
+                // Off is the safer default: a mis-named chapter then costs a tap on
+                // Skip rather than a scene.
+                SettingSwitch(
+                    "Skip openings and endings",
+                    "Uses the release's chapters; off shows a Skip button instead",
+                    current.autoSkip,
+                ) { on -> update { it.copy(autoSkip = on) } }
+                SettingSwitch("Subtitles", "Shown by default where a file has them", current.subtitles) { on ->
+                    update { it.copy(subtitles = on) }
+                }
+                // Preferences, not filters: a file with nothing in the language
+                // plays its own default track. A show that has been given its
+                // own choice keeps it.
+                LanguageSetting("Audio language", current.audioLanguage) { tag ->
+                    update { it.copy(audioLanguage = tag) }
+                }
+                LanguageSetting("Subtitle language", current.subtitleLanguage) { tag ->
+                    update { it.copy(subtitleLanguage = tag) }
+                }
+            }
+            SettingSwitch(
+                "Hardware decoding",
+                "Turn off if video shows green or torn frames",
+                hardwareDecoding,
+            ) {
+                hardwareDecoding = it
+                settings.hardwareDecoding = it
+            }
+            SettingSwitch(
+                "Background audio",
+                "Keeps playing with the app closed, from the notification",
+                backgroundAudio,
+            ) {
+                backgroundAudio = it
+                settings.backgroundAudio = it
+            }
+        }
+        SettingsPage.Storage -> SettingsSubPage(SettingsPage.Storage, padding, back) {
+            SettingSwitch("Download on Wi-Fi only", "Mobile data is never used for downloads", wifiOnly) {
+                wifiOnly = it
+                settings.wifiOnly = it
+                // Constraints are baked in at enqueue time, so a queue that already
+                // exists keeps the policy it was queued under until it is re-issued.
+                DownloadCoordinator.applyNetworkPolicy(context)
+            }
+            Column(Modifier.padding(horizontal = 16.dp, vertical = 8.dp)) {
+                Text("Streaming cache")
+                Text(
+                    "${formatBytes(state.storage.cacheBytes)} of $cacheBudgetGib GiB used",
+                    style = MaterialTheme.typography.bodySmall,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                )
+                AccentProgress(
+                    progress = {
+                        (state.storage.cacheBytes.toDouble() / SettingsStore.gibToBytes(cacheBudgetGib).toDouble())
+                            .toFloat().coerceIn(0f, 1f)
+                    },
+                    modifier = Modifier.fillMaxWidth().padding(vertical = 8.dp),
+                )
+                // What has been watched is kept up to this much, so going back over
+                // a scene costs no download. A lower choice frees the difference at
+                // once. Wrapping, so five chips survive a narrow phone at a large
+                // font scale.
+                FlowRow(horizontalArrangement = Arrangement.spacedBy(8.dp)) {
+                    SettingsStore.CACHE_BUDGET_CHOICES.forEach { gib ->
+                        FilterChip(
+                            selected = gib == cacheBudgetGib,
+                            onClick = {
+                                cacheBudgetGib = gib
+                                settings.cacheBudgetGib = gib
+                                scope.launch(Dispatchers.IO) {
+                                    runCatching {
+                                        NativeRuntime.engine().setStreamCacheBudget(SettingsStore.gibToBytes(gib))
+                                    }
+                                }
+                            },
+                            label = { Text("$gib GiB") },
+                        )
+                    }
+                }
+            }
+            // The cache is rebuildable, so it goes without asking. Offline episodes
+            // are a choice the viewer made, so that one asks.
+            SettingAction("Clear streaming cache", "Frees ${formatBytes(state.storage.cacheBytes)}", onClick = onClearCache)
+            SettingAction(
+                "Delete all offline episodes",
+                "${state.storage.offlineCount} " + (if (state.storage.offlineCount == 1uL) "episode" else "episodes") +
+                    " · ${formatBytes(state.storage.offlineBytes)}" +
+                    (
+                        state.storage.partialBytes.takeIf { it > 0uL }
+                            ?.let { " · ${formatBytes(it)} unfinished" }
+                            .orEmpty()
+                        ),
+                enabled = state.storage.offlineCount > 0uL || state.storage.partialBytes > 0uL,
+                onClick = { confirmDelete = true },
+            )
+        }
+        SettingsPage.Appearance -> SettingsSubPage(SettingsPage.Appearance, padding, back) {
+            Column(Modifier.padding(horizontal = 16.dp)) { AppearancePicker() }
+        }
+        SettingsPage.Metadata -> SettingsSubPage(SettingsPage.Metadata, padding, back) {
+            SettingAction(
+                "Metadata enrichment",
+                if (state.metadataSettings.enabled) {
+                    "On · ${state.metadataSettings.provider.displayName()} · sends title names to it"
+                } else {
+                    "Off, the privacy default"
+                },
+                onClick = { showMetadata = true },
+            )
+            // Every title looked up again, matched ones included: the way out of a
+            // library the provider answered wrong, which otherwise stays wrong for
+            // as long as the match is remembered.
+            SettingAction(
+                "Match everything again",
+                "Looks every title up again, hand-picked matches excepted",
+                enabled = state.metadataSettings.enabled && !state.refreshing,
+                onClick = onMatchAgain,
+            )
+        }
+        SettingsPage.About -> SettingsSubPage(SettingsPage.About, padding, back) {
+            ListItem(
+                headlineContent = { Text("Proton Stream") },
+                supportingContent = { Text("Version $version") },
+                colors = ListItemDefaults.colors(containerColor = Color.Transparent),
+            )
+            SettingAction("Licence", "GPL-3.0-or-later. Comes with absolutely no warranty.") {
+                legalDocument = LegalDocument("GNU GPL v3", "licenses/GPL-3.0.txt")
+            }
+            SettingAction("Third-party notices", "libmpv, Inter and the other components bundled") {
+                legalDocument = LegalDocument("Third-party notices", "licenses/THIRD_PARTY_NOTICES.md")
+            }
+        }
+    }
+    if (confirmDelete) {
+        AlertDialog(
+            onDismissRequest = { confirmDelete = false },
+            title = { Text("Delete all offline episodes?") },
+            text = {
+                Text(
+                    "${state.storage.offlineCount} episodes (${formatBytes(state.storage.offlineBytes)}) " +
+                        "will be removed from this device. Watch history is kept, and anything " +
+                        "deleted can be downloaded again.",
+                )
+            },
+            confirmButton = {
+                AccentButton(onClick = { confirmDelete = false; onRemoveAllOffline() }) { Text("Delete") }
+            },
+            dismissButton = { TonalButton(onClick = { confirmDelete = false }) { Text("Cancel") } },
+        )
+    }
+    legalDocument?.let { document ->
+        LegalDocumentDialog(document, onDismiss = { legalDocument = null })
+    }
+    if (showMetadata) {
+        MetadataSettingsDialog(
+            current = state.metadataSettings,
+            onDismiss = { showMetadata = false },
+            onSave = { enabled, provider, language, key ->
+                onSaveMetadata(enabled, provider, language, key)
+                showMetadata = false
+            },
+        )
+    }
+}
+
+/** The areas the first page lists, each a page of its own. */
+internal enum class SettingsPage(val title: String, val icon: ImageVector) {
+    Playback("Playback", Icons.Default.PlayCircle),
+    Storage("Downloads and storage", Icons.Default.Storage),
+    Appearance("Appearance", Icons.Default.Palette),
+    Metadata("Metadata", Icons.AutoMirrored.Filled.ManageSearch),
+    About("About", Icons.Default.Info),
+}
+
+/** One area's page: its name, a way back, and its rows. */
+@Composable
+private fun SettingsSubPage(
+    page: SettingsPage,
+    padding: PaddingValues,
+    back: @Composable () -> Unit,
+    rows: @Composable ColumnScope.() -> Unit,
+) {
+    TabPage(page.title, padding, navigationIcon = back) { body ->
+        Column(Modifier.fillMaxSize().padding(body).verticalScroll(rememberScrollState())) {
+            rows()
+            Spacer(Modifier.height(24.dp))
+        }
+    }
+}
+
+/** The installed version, as the launcher and the store show it. */
+@Composable
+private fun appVersion(): String {
+    val context = LocalContext.current
+    return remember {
+        runCatching { context.packageManager.getPackageInfo(context.packageName, 0).versionName }
+            .getOrNull() ?: "unknown"
+    }
+}
+
+/** A switch with its one line of explanation; the whole row toggles it. */
+@Composable
+private fun SettingSwitch(headline: String, supporting: String, checked: Boolean, onChecked: (Boolean) -> Unit) {
+    ListItem(
+        headlineContent = { Text(headline) },
+        supportingContent = { Text(supporting) },
+        trailingContent = { Switch(checked = checked, onCheckedChange = null) },
+        colors = ListItemDefaults.colors(containerColor = Color.Transparent),
+        modifier = Modifier.toggleable(value = checked, role = Role.Switch, onValueChange = onChecked),
+    )
+}
+
+/** A row that does something when tapped: opens a dialog, clears a cache. */
+@Composable
+private fun SettingAction(
+    headline: String,
+    supporting: String,
+    enabled: Boolean = true,
+    onClick: () -> Unit,
+) {
+    val colors = ListItemDefaults.colors(containerColor = Color.Transparent)
+    ListItem(
+        headlineContent = { Text(headline) },
+        supportingContent = { Text(supporting) },
+        colors = if (enabled) {
+            colors
+        } else {
+            ListItemDefaults.colors(
+                containerColor = Color.Transparent,
+                headlineColor = MaterialTheme.colorScheme.onSurface.copy(alpha = 0.38f),
+                supportingColor = MaterialTheme.colorScheme.onSurfaceVariant.copy(alpha = 0.38f),
+            )
+        },
+        modifier = Modifier.clickable(enabled = enabled, onClick = onClick),
+    )
+}
+
+@Composable
+private fun MetadataSettingsDialog(
+    current: uniffi.pstr_android.MetadataSettingsRecord,
+    onDismiss: () -> Unit,
+    onSave: (Boolean, MetadataProvider, String, String) -> Unit,
+) {
+    var enabled by remember { mutableStateOf(current.enabled) }
+    var provider by remember { mutableStateOf(current.provider) }
+    var language by remember { mutableStateOf(current.language) }
+    var apiKey by remember { mutableStateOf("") }
+    AlertDialog(
+        onDismissRequest = onDismiss,
+        properties = DialogProperties(securePolicy = SecureFlagPolicy.SecureOn),
+        title = { Text("Metadata enrichment") },
+        text = {
+            Column(verticalArrangement = Arrangement.spacedBy(8.dp)) {
+                Text("Off by default: enabling sends the titles in your library to a third party, associated with your IP address and subject to their privacy policy.")
+                SettingToggle("Enable enrichment", enabled) { enabled = it }
+                Row(horizontalArrangement = Arrangement.spacedBy(8.dp)) {
+                    MetadataProvider.entries.forEach { option ->
+                        if (option == provider) AccentButton(onClick = { provider = option }) { Text(option.displayName()) }
+                        else EdgedButton(onClick = { provider = option }) { Text(option.displayName()) }
+                    }
+                }
+                Text(
+                    if (provider == MetadataProvider.ANI_LIST) "Anime; no account or API key required."
+                    else "Film and television; requires a free TMDB API key.",
+                    style = MaterialTheme.typography.bodySmall,
+                )
+                if (provider == MetadataProvider.TMDB) {
+                    OutlinedTextField(language, { language = it }, label = { Text("Language") }, singleLine = true)
+                    OutlinedTextField(
+                        apiKey,
+                        { apiKey = it },
+                        label = { Text(if (current.ready) "TMDB API key (leave blank to keep)" else "TMDB API key") },
+                        visualTransformation = PasswordVisualTransformation(),
+                        keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Password),
+                        singleLine = true,
+                    )
+                }
+            }
+        },
+        confirmButton = {
+            AccentButton(
+                enabled = !enabled || provider != MetadataProvider.TMDB || current.ready || apiKey.isNotBlank(),
+                onClick = { onSave(enabled, provider, language.ifBlank { "en" }, apiKey) },
+            ) { Text("Save") }
+        },
+        dismissButton = { TonalButton(onClick = onDismiss) { Text("Cancel") } },
+    )
+}
+
+internal fun MetadataProvider.displayName(): String = when (this) {
+    MetadataProvider.ANI_LIST -> "AniList"
+    MetadataProvider.TMDB -> "TMDB"
+}
+
+private data class LegalDocument(val title: String, val assetPath: String)
+
+@Composable
+private fun LegalDocumentDialog(document: LegalDocument, onDismiss: () -> Unit) {
+    val context = LocalContext.current
+    var contents by remember(document.assetPath) { mutableStateOf("Loading…") }
+    LaunchedEffect(document.assetPath) {
+        contents = runCatching {
+            withContext(Dispatchers.IO) {
+                context.assets.open(document.assetPath).bufferedReader().use { it.readText() }
+            }
+        }.getOrElse { error -> "Unable to load this document: ${error.message}" }
+    }
+    AlertDialog(
+        onDismissRequest = onDismiss,
+        title = { Text(document.title) },
+        text = {
+            LazyColumn(Modifier.fillMaxWidth().heightIn(max = 520.dp)) {
+                item { Text(contents, style = MaterialTheme.typography.bodySmall) }
+            }
+        },
+        confirmButton = { AccentButton(onClick = onDismiss) { Text("Close") } },
+    )
+}
+
+@Composable
+internal fun SettingToggle(label: String, checked: Boolean, onChecked: (Boolean) -> Unit) {
+    Row(Modifier.fillMaxWidth().padding(vertical = 14.dp), verticalAlignment = Alignment.CenterVertically) {
+        Text(label, Modifier.weight(1f))
+        Switch(checked = checked, onCheckedChange = onChecked)
+    }
+}
+
+/**
+ * Flavour, accent and gradients — the same three the desktop client offers.
+ *
+ * Every colour is resolved by Rust, so a swatch here is the colour the app will
+ * actually paint rather than an approximation of it, and the choice is stored in
+ * the file both clients read.
+ */
+@Composable
+private fun AppearancePicker() {
+    val scope = rememberCoroutineScope()
+    var choice by remember { mutableStateOf<AppearanceRecord?>(null) }
+    var swatches by remember { mutableStateOf<Map<AccentChoice, Color>>(emptyMap()) }
+
+    suspend fun repaint(next: AppearanceRecord, store: Boolean) {
+        runCatching {
+            withContext(Dispatchers.IO) {
+                val engine = NativeRuntime.engine()
+                if (store) engine.setAppearance(next)
+                val palette = engine.previewPalette(next)
+                // Every accent as it would look in *this* flavour: a swatch row
+                // that keeps Mocha's pastels while Latte is selected is a row
+                // that lies about what the next tap does.
+                val row = AccentChoice.entries.associateWith { accent ->
+                    Color(engine.previewPalette(next.copy(accent = accent)).accent.toInt())
+                }
+                palette to row
+            }
+        }.onSuccess { (palette, row) ->
+            choice = next
+            swatches = row
+            AppearanceState.apply(palette)
+        }
+    }
+
+    LaunchedEffect(Unit) {
+        runCatching { withContext(Dispatchers.IO) { NativeRuntime.engine().appearance() } }
+            .onSuccess { repaint(it, store = false) }
+    }
+
+    val current = choice ?: return
+    Text("Palette", style = MaterialTheme.typography.bodyMedium, modifier = Modifier.padding(top = 8.dp))
+    LazyRow(horizontalArrangement = Arrangement.spacedBy(8.dp), modifier = Modifier.padding(vertical = 8.dp)) {
+        items(FlavorChoice.entries.toList(), key = { it.name }) { flavor ->
+            val selected = flavor == current.flavor
+            if (selected) {
+                AccentButton(onClick = {}) { Text(flavor.label()) }
+            } else {
+                EdgedButton(onClick = {
+                    scope.launch { repaint(current.copy(flavor = flavor), store = true) }
+                }) { Text(flavor.label()) }
+            }
+        }
+    }
+    Text("Accent", style = MaterialTheme.typography.bodyMedium)
+    LazyRow(horizontalArrangement = Arrangement.spacedBy(10.dp), modifier = Modifier.padding(vertical = 8.dp)) {
+        items(AccentChoice.entries.toList(), key = { it.name }) { accent ->
+            val swatch = swatches[accent] ?: MaterialTheme.colorScheme.surfaceVariant
+            Box(
+                Modifier
+                    .size(36.dp)
+                    .clip(CircleShape)
+                    .background(swatch)
+                    .border(
+                        width = if (accent == current.accent) 3.dp else 1.dp,
+                        color = if (accent == current.accent) {
+                            MaterialTheme.colorScheme.onBackground
+                        } else {
+                            MaterialTheme.colorScheme.outline
+                        },
+                        shape = CircleShape,
+                    )
+                    .clickable {
+                        scope.launch { repaint(current.copy(accent = accent), store = true) }
+                    },
+            )
+        }
+    }
+    SettingToggle("Paint the accent as a gradient", current.gradients) { on ->
+        scope.launch { repaint(current.copy(gradients = on), store = true) }
+    }
+    Text(
+        "Off is the safer setting on a panel that bands: a slow ramp across a wide bar " +
+            "shows every step it is drawn from, and flat is better than striped.",
+        style = MaterialTheme.typography.bodySmall,
+        modifier = Modifier.padding(bottom = 14.dp),
+    )
+}
+
+/** What each palette family is called. The desktop client says the same. */
+private fun FlavorChoice.label() = when (this) {
+    FlavorChoice.PROTON -> "Proton"
+    FlavorChoice.LATTE -> "Catppuccin Latte"
+    FlavorChoice.FRAPPE -> "Catppuccin Frappé"
+    FlavorChoice.MACCHIATO -> "Catppuccin Macchiato"
+    FlavorChoice.MOCHA -> "Catppuccin Mocha"
+    FlavorChoice.PERSONA5 -> "Persona 5"
+}
@@ -0,0 +1,284 @@
+package io.narl.protonstream.ui
+
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.PaddingValues
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.items
+import androidx.compose.foundation.lazy.grid.items
+import androidx.compose.material3.AlertDialog
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.OutlinedTextField
+import androidx.compose.material3.Text
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Refresh
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.input.PasswordVisualTransformation
+import androidx.compose.foundation.text.KeyboardOptions
+import androidx.compose.ui.text.input.KeyboardType
+import androidx.compose.ui.window.DialogProperties
+import androidx.compose.ui.window.SecureFlagPolicy
+import androidx.compose.ui.unit.dp
+import io.narl.protonstream.ui.theme.AccentButton
+import io.narl.protonstream.ui.theme.TonalButton
+import uniffi.pstr_android.ShareRecord
+import androidx.compose.foundation.layout.Box
+import androidx.compose.material3.ExtendedFloatingActionButton
+import androidx.compose.material3.ListItem
+import androidx.compose.material3.ListItemDefaults
+import androidx.compose.material3.DropdownMenu
+import androidx.compose.material3.DropdownMenuItem
+import androidx.compose.material.icons.filled.Add
+import androidx.compose.material.icons.filled.MoreVert
+import androidx.compose.material.icons.filled.Key
+import androidx.compose.material.icons.filled.Delete
+import androidx.compose.material.icons.filled.FolderShared
+import androidx.compose.ui.graphics.Color
+
+@Composable
+internal fun SharesScreen(
+    shares: List<ShareRecord>,
+    onAdd: (String, String, String?) -> Unit,
+    onRepair: (String, String, String?) -> Unit,
+    onRefresh: (String) -> Unit,
+    onRemove: (String) -> Unit,
+    incomingLink: String?,
+    onIncomingLinkTaken: () -> Unit,
+    padding: PaddingValues,
+) {
+    var showAdd by remember { mutableStateOf(false) }
+    var repairing by remember { mutableStateOf<ShareRecord?>(null) }
+    var removing by remember { mutableStateOf<ShareRecord?>(null) }
+    TabPage("Shares", padding) { body ->
+        Box(Modifier.fillMaxSize().padding(body)) {
+            if (shares.isEmpty()) {
+                EmptyState("No shares yet", "Add a Proton Drive public link to build your library.")
+            } else {
+                LazyColumn(contentPadding = PaddingValues(top = 8.dp, bottom = 96.dp)) {
+                    items(shares, key = { it.id }) { share ->
+                        ShareRow(
+                            share = share,
+                            onRefresh = { onRefresh(share.id) },
+                            onRepair = { repairing = share },
+                            onRemove = { removing = share },
+                        )
+                    }
+                }
+            }
+            // Where a thumb is, and the one thing this page is for. The share
+            // sheet and a tapped link land in the same form.
+            ExtendedFloatingActionButton(
+                onClick = { showAdd = true },
+                icon = { Icon(Icons.Default.Add, contentDescription = null) },
+                text = { Text("Add share") },
+                containerColor = MaterialTheme.colorScheme.primary,
+                contentColor = MaterialTheme.colorScheme.onPrimary,
+                modifier = Modifier.align(Alignment.BottomEnd).padding(16.dp),
+            )
+        }
+    }
+    if (showAdd || incomingLink != null) {
+        AddShareDialog(
+            initialUrl = incomingLink.orEmpty(),
+            onDismiss = { showAdd = false; onIncomingLinkTaken() },
+            onAdd = onAdd,
+        )
+    }
+    repairing?.let { share ->
+        RepairShareDialog(
+            share = share,
+            onDismiss = { repairing = null },
+            onRepair = { url, password -> onRepair(share.id, url, password) },
+        )
+    }
+    removing?.let { share ->
+        // Asked, because it cannot be undone: the link's secret, its offline
+        // files and its watch positions all go (`Catalog::remove_share`).
+        AlertDialog(
+            onDismissRequest = { removing = null },
+            title = { Text("Remove ${share.name}?") },
+            text = {
+                Text(
+                    "Its titles leave the library, and its offline episodes and watch " +
+                        "progress are deleted. Adding the link again starts it fresh.",
+                )
+            },
+            confirmButton = {
+                AccentButton(onClick = { removing = null; onRemove(share.id) }) { Text("Remove") }
+            },
+            dismissButton = { TonalButton(onClick = { removing = null }) { Text("Cancel") } },
+        )
+    }
+}
+
+/**
+ * One share: its name, how it is unlocked, and its actions behind a menu.
+ *
+ * Three differently styled controls beside the name squeezed it into a column
+ * a word wide; one icon leaves the row its width.
+ */
+@Composable
+private fun ShareRow(
+    share: ShareRecord,
+    onRefresh: () -> Unit,
+    onRepair: () -> Unit,
+    onRemove: () -> Unit,
+) {
+    var menu by remember { mutableStateOf(false) }
+    ListItem(
+        headlineContent = { Text(share.name, fontWeight = FontWeight.SemiBold) },
+        supportingContent = {
+            Text(if (share.hasCustomPassword) "Link and custom password, stored securely" else "Public link")
+        },
+        leadingContent = {
+            Icon(
+                Icons.Default.FolderShared,
+                contentDescription = null,
+                tint = MaterialTheme.colorScheme.primary,
+            )
+        },
+        trailingContent = {
+            Box {
+                IconButton(onClick = { menu = true }) {
+                    Icon(Icons.Default.MoreVert, contentDescription = "Actions for ${share.name}")
+                }
+                DropdownMenu(expanded = menu, onDismissRequest = { menu = false }) {
+                    // One share, not the library: a link that has just had files
+                    // added should not cost a walk of every other one.
+                    DropdownMenuItem(
+                        text = { Text("Refresh") },
+                        leadingIcon = { Icon(Icons.Default.Refresh, contentDescription = null) },
+                        onClick = { menu = false; onRefresh() },
+                    )
+                    // Not a remove: a share whose secret has become unreadable
+                    // cannot be removed either, since removal deletes a secret
+                    // the store can no longer touch.
+                    DropdownMenuItem(
+                        text = { Text("Re-enter link") },
+                        leadingIcon = { Icon(Icons.Default.Key, contentDescription = null) },
+                        onClick = { menu = false; onRepair() },
+                    )
+                    DropdownMenuItem(
+                        text = { Text("Remove") },
+                        leadingIcon = { Icon(Icons.Default.Delete, contentDescription = null) },
+                        onClick = { menu = false; onRemove() },
+                    )
+                }
+            }
+        },
+        colors = ListItemDefaults.colors(containerColor = Color.Transparent),
+    )
+}
+
+/**
+ * Re-enter the link for a share the app can no longer decrypt its secret for.
+ *
+ * It has to be the *same* link — a different token is a different share, and
+ * repointing this one at it would leave every catalog row and every offline file
+ * describing something that is not there. Rust enforces that; this only says so.
+ */
+@Composable
+private fun RepairShareDialog(
+    share: ShareRecord,
+    onDismiss: () -> Unit,
+    onRepair: (String, String?) -> Unit,
+) {
+    var url by remember { mutableStateOf("") }
+    var password by remember { mutableStateOf("") }
+    AlertDialog(
+        onDismissRequest = onDismiss,
+        properties = DialogProperties(securePolicy = SecureFlagPolicy.SecureOn),
+        title = { Text("Re-enter link for ${share.name}") },
+        text = {
+            Column(verticalArrangement = Arrangement.spacedBy(8.dp)) {
+                Text(
+                    "The stored credentials for this share cannot be read — usually after a " +
+                        "screen-lock change or a device restore. Entering the same link again " +
+                        "restores access without losing the library or anything downloaded.",
+                    style = MaterialTheme.typography.bodySmall,
+                )
+                OutlinedTextField(
+                    url,
+                    { url = it },
+                    label = { Text("Public share URL") },
+                    singleLine = true,
+                    visualTransformation = PasswordVisualTransformation(),
+                    keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Password),
+                )
+                OutlinedTextField(
+                    password,
+                    { password = it },
+                    label = { Text("Custom password (optional)") },
+                    singleLine = true,
+                    visualTransformation = PasswordVisualTransformation(),
+                    keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Password),
+                )
+            }
+        },
+        confirmButton = {
+            AccentButton(
+                onClick = { onRepair(url.trim(), password); onDismiss() },
+                enabled = url.isNotBlank(),
+            ) { Text("Restore") }
+        },
+        dismissButton = { TonalButton(onClick = onDismiss) { Text("Cancel") } },
+    )
+}
+
+@Composable
+private fun AddShareDialog(
+    initialUrl: String,
+    onDismiss: () -> Unit,
+    onAdd: (String, String, String?) -> Unit,
+) {
+    var name by remember { mutableStateOf("") }
+    var url by remember(initialUrl) { mutableStateOf(initialUrl) }
+    var password by remember { mutableStateOf("") }
+    AlertDialog(
+        onDismissRequest = onDismiss,
+        properties = DialogProperties(securePolicy = SecureFlagPolicy.SecureOn),
+        title = { Text("Add Proton Drive share") },
+        text = {
+            Column(verticalArrangement = Arrangement.spacedBy(8.dp)) {
+                OutlinedTextField(name, { name = it }, label = { Text("Library name") }, singleLine = true)
+                OutlinedTextField(
+                    url,
+                    { url = it },
+                    label = { Text("Public share URL") },
+                    singleLine = true,
+                    // The URL fragment is a secret. Password input disables
+                    // IME learning/suggestions while normal long-press paste
+                    // remains available.
+                    visualTransformation = PasswordVisualTransformation(),
+                    keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Password),
+                )
+                OutlinedTextField(
+                    password,
+                    { password = it },
+                    label = { Text("Custom password (optional)") },
+                    singleLine = true,
+                    visualTransformation = PasswordVisualTransformation(),
+                    keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Password),
+                )
+            }
+        },
+        confirmButton = {
+            AccentButton(
+                onClick = { onAdd(name.trim(), url.trim(), password); onDismiss() },
+                enabled = name.isNotBlank() && url.isNotBlank(),
+            ) { Text("Add") }
+        },
+        dismissButton = { TonalButton(onClick = onDismiss) { Text("Cancel") } },
+    )
+}
@@ -0,0 +1,590 @@
+package io.narl.protonstream.ui
+
+import android.content.Intent
+import androidx.activity.compose.PredictiveBackHandler
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.runtime.mutableFloatStateOf
+import androidx.compose.ui.graphics.graphicsLayer
+import kotlin.coroutines.cancellation.CancellationException
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.PaddingValues
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.heightIn
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.BoxWithConstraints
+import androidx.compose.foundation.layout.statusBarsPadding
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.layout.width
+import androidx.compose.foundation.layout.aspectRatio
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.shape.CircleShape
+import androidx.compose.foundation.lazy.items
+import androidx.compose.foundation.lazy.itemsIndexed
+import androidx.compose.foundation.lazy.grid.items
+import androidx.compose.material3.AlertDialog
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.OutlinedTextField
+import androidx.compose.material3.Text
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.CheckCircle
+import androidx.compose.material.icons.outlined.CheckCircle
+import androidx.compose.material.icons.filled.Download
+import androidx.compose.material.icons.filled.Edit
+import androidx.compose.material.icons.filled.Pause
+import androidx.compose.material.icons.filled.PlayArrow
+import androidx.compose.material.icons.automirrored.filled.ArrowBack
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.rememberCoroutineScope
+import androidx.compose.runtime.setValue
+import androidx.compose.runtime.livedata.observeAsState
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.style.TextOverflow
+import androidx.compose.ui.unit.dp
+import androidx.core.net.toUri
+import androidx.work.WorkManager
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
+import io.narl.protonstream.download.DownloadCoordinator
+import io.narl.protonstream.download.DownloadStateStore
+import io.narl.protonstream.download.RetainedDownload
+import io.narl.protonstream.native.NativeRuntime
+import io.narl.protonstream.ui.theme.AccentButton
+import io.narl.protonstream.ui.theme.AccentProgress
+import io.narl.protonstream.ui.theme.EdgedButton
+import io.narl.protonstream.ui.theme.QuietButton
+import io.narl.protonstream.ui.theme.TonalButton
+import io.narl.protonstream.ui.theme.solid
+import uniffi.pstr_android.TitleRecord
+import uniffi.pstr_android.EpisodeRecord
+import uniffi.pstr_android.SeasonRecord
+import uniffi.pstr_android.MatchRecord
+import androidx.compose.foundation.lazy.LazyRow
+import androidx.compose.material3.FilterChip
+import androidx.compose.material.icons.filled.Replay
+import androidx.compose.material.icons.filled.DownloadDone
+import androidx.compose.material.icons.automirrored.filled.OpenInNew
+import androidx.compose.ui.graphics.Brush
+import androidx.compose.ui.graphics.vector.ImageVector
+
+@Composable
+internal fun TitleScreen(
+    title: TitleRecord,
+    playerReady: Boolean,
+    onPlay: (List<EpisodeRecord>, Int) -> Unit,
+    onBack: () -> Unit,
+    onPreferenceError: (Throwable) -> Unit,
+    onMetadataChanged: () -> Unit,
+    onSetWatched: (EpisodeRecord, Boolean) -> Unit,
+    padding: PaddingValues,
+) {
+    val context = LocalContext.current
+    var showMatch by remember(title.key) { mutableStateOf(false) }
+    var overviewOpen by remember(title.key) { mutableStateOf(false) }
+
+    // Predictive back: the page shrinks towards the library as the gesture
+    // is dragged, and springs back if it is let go of, so the viewer sees
+    // where back goes before committing to it.
+    var backProgress by remember { mutableFloatStateOf(0f) }
+    PredictiveBackHandler { gesture ->
+        try {
+            gesture.collect { backProgress = it.progress }
+            onBack()
+        } catch (cancelled: CancellationException) {
+            backProgress = 0f
+            throw cancelled
+        }
+    }
+
+    // Display order across seasons: what previous/next and autoplay walk, and
+    // the same order the desktop client uses.
+    val playlist = remember(title) { title.seasons.flatMap(SeasonRecord::episodes) }
+    val nextUp = remember(playlist) { nextUpIndex(playlist) }
+    val upNext = playlist.getOrNull(nextUp)
+    // One season on screen at a time, opened on the one Play would land in: a
+    // forty-episode show as stacked sections is one long scroll to the part
+    // that matters.
+    var seasonIndex by remember(title.key) {
+        mutableStateOf(
+            title.seasons.indexOfFirst { season -> season.episodes.any { it.linkId == upNext?.linkId } }
+                .coerceAtLeast(0),
+        )
+    }
+    val season = title.seasons.getOrNull(seasonIndex)
+    // Live download state per episode, so a row can show progress and be paused
+    // without a trip to the Downloads tab.
+    val work by WorkManager.getInstance(context)
+        .getWorkInfosByTagLiveData(DownloadCoordinator.TAG).observeAsState(emptyList())
+    val downloads = remember(work) { DownloadStateStore(context).records() }
+
+    // On a tablet the page keeps a phone's reading width, centred: a Play
+    // button and synopsis lines two thousand pixels wide are read by turning
+    // the head. The backdrop still spans the window, but no taller than about
+    // half of it, or a landscape tablet opened on a picture and nothing else.
+    BoxWithConstraints(
+        Modifier
+            .fillMaxSize()
+            .graphicsLayer {
+                val scale = 1f - 0.1f * backProgress
+                scaleX = scale
+                scaleY = scale
+                shape = RoundedCornerShape((32 * backProgress).dp)
+                clip = backProgress > 0f
+            }
+            .padding(padding),
+    ) {
+        val side = ((maxWidth - READABLE_WIDTH) / 2).coerceAtLeast(0.dp)
+        val backdropHeight = minOf(maxWidth * 9f / 16f, maxHeight * 0.55f)
+        LazyColumn(
+            modifier = Modifier.fillMaxSize(),
+            contentPadding = PaddingValues(bottom = 24.dp),
+            verticalArrangement = Arrangement.spacedBy(8.dp),
+        ) {
+            item(key = "backdrop") {
+                // Edge to edge, fading into the page: the art is the first thing
+                // the page says, and a framed thumbnail with a margin round it read
+                // as one card among the many below it.
+                Box(Modifier.sharedArt(title.key).fillMaxWidth().height(backdropHeight)) {
+                    RemoteArtwork(
+                        title.backdropUrl ?: title.posterUrl,
+                        title.canonicalName ?: title.name,
+                        Modifier.fillMaxSize(),
+                        fallback = title.thumbnailSource,
+                        labelled = false,
+                    )
+                    Box(
+                        Modifier.fillMaxSize().background(
+                            Brush.verticalGradient(
+                                0.45f to Color.Transparent,
+                                1f to MaterialTheme.colorScheme.background,
+                            ),
+                        ),
+                    )
+                    IconButton(
+                        onClick = onBack,
+                        modifier = Modifier
+                            .statusBarsPadding()
+                            .padding(8.dp)
+                            .clip(CircleShape)
+                            .background(Color.Black.copy(alpha = 0.4f)),
+                    ) {
+                        Icon(Icons.AutoMirrored.Filled.ArrowBack, contentDescription = "Back to library", tint = Color.White)
+                    }
+                }
+            }
+            item(key = "heading") {
+                Column(Modifier.padding(horizontal = side + 16.dp)) {
+                    Text(title.canonicalName ?: title.name, style = MaterialTheme.typography.headlineMedium)
+                    title.originalName?.takeIf { it != title.canonicalName }?.let {
+                        Text(it, style = MaterialTheme.typography.bodyMedium, color = MaterialTheme.colorScheme.onSurfaceVariant)
+                    }
+                    Text(
+                        listOfNotNull(
+                            (title.metadataYear ?: title.year)?.toString(),
+                            title.rating?.let { "★ %.1f".format(it) },
+                            title.genres.takeIf { it.isNotEmpty() }?.take(3)?.joinToString(", "),
+                            "${title.watchedCount} of ${title.episodeCount} watched".takeIf { title.episodeCount > 1uL },
+                        ).joinToString("  ·  "),
+                        style = MaterialTheme.typography.bodySmall,
+                        color = MaterialTheme.colorScheme.onSurfaceVariant,
+                        modifier = Modifier.padding(top = 6.dp),
+                    )
+                    // The one thing the page is for, full width and naming what it
+                    // will play: "Resume" alone left the viewer guessing which
+                    // episode of forty it meant.
+                    AccentButton(
+                        onClick = { onPlay(playlist, nextUp) },
+                        enabled = playerReady && playlist.isNotEmpty(),
+                        modifier = Modifier.fillMaxWidth().padding(top = 16.dp),
+                    ) {
+                        Icon(Icons.Default.PlayArrow, contentDescription = null, modifier = Modifier.size(20.dp))
+                        Spacer(Modifier.width(8.dp))
+                        Text(
+                            when {
+                                !playerReady -> "Player loading…"
+                                upNext == null -> "Play"
+                                upNext.resumeAt != null -> "Resume ${upNext.label}"
+                                title.watchedCount > 0uL -> "Continue with ${upNext.label}"
+                                playlist.size == 1 -> "Play"
+                                else -> "Play ${upNext.label}"
+                            },
+                            maxLines = 1,
+                            overflow = TextOverflow.Ellipsis,
+                        )
+                    }
+                    // Everything else as labelled icons in one row: four actions of
+                    // three button styles used to wrap over three lines and bury
+                    // the episodes under them.
+                    Row(Modifier.fillMaxWidth().padding(top = 12.dp)) {
+                        // Only where it would do something different: an unstarted
+                        // show already starts at the beginning.
+                        if (upNext?.resumeAt != null || title.watchedCount > 0uL) {
+                            TitleAction(Icons.Default.Replay, "Start over", Modifier.weight(1f), enabled = playerReady) {
+                                onPlay(playlist, 0)
+                            }
+                        }
+                        TitleAction(Icons.Default.Download, "Download", Modifier.weight(1f)) {
+                            DownloadCoordinator.enqueue(context, playlist)
+                        }
+                        TitleAction(Icons.Default.Edit, "Match", Modifier.weight(1f)) { showMatch = true }
+                        // The provider's own page for this title: where a viewer goes
+                        // to check that the thing the app matched is what they have.
+                        title.externalUrl?.let { url ->
+                            TitleAction(
+                                Icons.AutoMirrored.Filled.OpenInNew,
+                                title.metadataProvider?.displayName() ?: "Provider",
+                                Modifier.weight(1f),
+                            ) {
+                                runCatching {
+                                    context.startActivity(Intent(Intent.ACTION_VIEW, url.toUri()))
+                                }.onFailure(onPreferenceError)
+                            }
+                        }
+                    }
+                    title.overview?.let { overview ->
+                        // Three lines, then a tap for the rest: a synopsis with its
+                        // source notes ran to a screen and a half on a phone.
+                        Text(
+                            overview.trim(),
+                            maxLines = if (overviewOpen) Int.MAX_VALUE else 3,
+                            overflow = TextOverflow.Ellipsis,
+                            modifier = Modifier
+                                .padding(top = 12.dp)
+                                .clickable { overviewOpen = !overviewOpen },
+                        )
+                    }
+                    // Said plainly, because it changes what a re-match will do: a
+                    // hand-picked match is not overwritten by an automatic pass.
+                    if (title.manualMatch) {
+                        Text(
+                            "Matched by hand",
+                            style = MaterialTheme.typography.labelMedium,
+                            color = MaterialTheme.colorScheme.onSurfaceVariant,
+                            modifier = Modifier.padding(top = 8.dp),
+                        )
+                    }
+                }
+            }
+            item(key = "seasons") {
+                Row(
+                    Modifier.fillMaxWidth().padding(start = side + 16.dp, end = side + 4.dp, top = 12.dp),
+                    verticalAlignment = Alignment.CenterVertically,
+                ) {
+                    LazyRow(Modifier.weight(1f), horizontalArrangement = Arrangement.spacedBy(8.dp)) {
+                        itemsIndexed(title.seasons, key = { _, it -> it.label }) { index, entry ->
+                            FilterChip(
+                                selected = index == seasonIndex,
+                                onClick = { seasonIndex = index },
+                                label = { Text(entry.label) },
+                            )
+                        }
+                    }
+                    season?.let {
+                        IconButton(onClick = { DownloadCoordinator.enqueue(context, it.episodes) }) {
+                            Icon(Icons.Default.Download, contentDescription = "Download ${it.label}")
+                        }
+                    }
+                }
+            }
+            season?.let { shown ->
+                itemsIndexed(shown.episodes, key = { _, it -> it.linkId }) { position, episode ->
+                    Box(Modifier.padding(horizontal = side)) {
+                        EpisodeRow(
+                            episode = episode,
+                            numbering = episode.numbering(shown.number, position),
+                            position = position,
+                            download = downloads.firstOrNull {
+                                it.shareId == episode.shareId && it.linkId == episode.linkId
+                            },
+                            playerReady = playerReady,
+                            onPlay = { onPlay(playlist, playlist.indexOfFirst { it.linkId == episode.linkId }) },
+                            onDownload = { DownloadCoordinator.enqueue(context, episode) },
+                            onPause = { DownloadCoordinator.pause(context, it) },
+                            onResume = { DownloadCoordinator.resume(context, it) },
+                            onSetWatched = { onSetWatched(episode, it) },
+                        )
+                    }
+                }
+            }
+        }
+    }
+    if (showMatch) {
+        ChangeMatchDialog(
+            title = title,
+            onDismiss = { showMatch = false },
+            onChanged = { showMatch = false; onMetadataChanged() },
+            onError = onPreferenceError,
+        )
+    }
+}
+
+/** How wide the page's text and controls run on a window wider than a phone. */
+private val READABLE_WIDTH = 720.dp
+
+/** One of the title's secondary actions: an icon with its name under it. */
+@Composable
+private fun TitleAction(
+    icon: ImageVector,
+    label: String,
+    modifier: Modifier = Modifier,
+    enabled: Boolean = true,
+    onClick: () -> Unit,
+) {
+    Column(
+        modifier
+            .clip(MaterialTheme.shapes.medium)
+            .clickable(enabled = enabled, onClick = onClick)
+            .padding(vertical = 8.dp),
+        horizontalAlignment = Alignment.CenterHorizontally,
+    ) {
+        Icon(icon, contentDescription = null)
+        Text(
+            label,
+            style = MaterialTheme.typography.labelMedium,
+            maxLines = 1,
+            overflow = TextOverflow.Ellipsis,
+            modifier = Modifier.padding(top = 4.dp),
+        )
+    }
+}
+
+/**
+ * `S03E38`, `E38`, or the row's place in the season.
+ *
+ * Mirrors `Episode::numbering` in `pstr-core`, plus the desktop client's
+ * fallback to the season folder's number. The last case is deliberately *not*
+ * printed as an episode number — nothing in the name numbered this file, and
+ * `#4` says "fourth in the list" where `E04` would be a claim about the show.
+ * Some ordinal is required regardless: a season of rows that all read the same
+ * is a season the viewer cannot navigate at all.
+ */
+private fun EpisodeRecord.numbering(fallbackSeason: UInt?, position: Int): String {
+    val season = this.season ?: fallbackSeason
+    val number = this.number
+    return when {
+        season != null && number != null -> "S%02dE%02d".format(season.toInt(), number.toInt())
+        number != null -> "E%02d".format(number.toInt())
+        else -> "#${position + 1}"
+    }
+}
+
+/**
+ * One episode: play it, see where it was left, and drive its download.
+ *
+ * The row *is* the play button — the still, the number and the name are one
+ * target, which is what lets the trailing controls be two icons in a fixed
+ * column rather than a second row of buttons under every episode.
+ */
+@Composable
+private fun EpisodeRow(
+    episode: EpisodeRecord,
+    numbering: String,
+    position: Int,
+    download: RetainedDownload?,
+    playerReady: Boolean,
+    onPlay: () -> Unit,
+    onDownload: () -> Unit,
+    onPause: (RetainedDownload) -> Unit,
+    onResume: (RetainedDownload) -> Unit,
+    onSetWatched: (Boolean) -> Unit,
+) {
+    val running = download?.status == RetainedDownload.STATUS_RUNNING ||
+        download?.status == RetainedDownload.STATUS_QUEUED
+    val heading = episode.heading(position)
+    Column(
+        Modifier
+            .fillMaxWidth()
+            .clickable(enabled = playerReady, onClick = onPlay)
+            .padding(horizontal = 16.dp, vertical = 6.dp),
+    ) {
+        Row(verticalAlignment = Alignment.CenterVertically) {
+            // With metadata off the provider has no still, and Proton's own
+            // thumbnail is a frame of this very episode. Where it was left sits
+            // on the still's lower edge, the way every streaming app shows it.
+            Box(
+                Modifier
+                    .width(128.dp)
+                    .aspectRatio(16f / 9f)
+                    .clip(MaterialTheme.shapes.small),
+                contentAlignment = Alignment.Center,
+            ) {
+                RemoteArtwork(
+                    episode.stillUrl,
+                    heading,
+                    Modifier.fillMaxSize(),
+                    fallback = episode.thumbnailSource,
+                    labelled = false,
+                )
+                episode.progress?.takeIf { !episode.watched }?.let { progress ->
+                    AccentProgress(
+                        progress = { progress.toFloat().coerceIn(0f, 1f) },
+                        modifier = Modifier.fillMaxWidth().align(Alignment.BottomCenter),
+                    )
+                }
+            }
+            Column(Modifier.weight(1f).padding(horizontal = 12.dp)) {
+                Text(
+                    heading,
+                    style = MaterialTheme.typography.titleSmall,
+                    // Seen episodes stay legible but stop competing with the
+                    // one the viewer has not watched yet.
+                    color = if (episode.watched) {
+                        MaterialTheme.colorScheme.onSurfaceVariant
+                    } else {
+                        MaterialTheme.colorScheme.onSurface
+                    },
+                    maxLines = 2,
+                    overflow = TextOverflow.Ellipsis,
+                )
+                Text(
+                    listOfNotNull(
+                        numbering,
+                        episode.size?.let(::formatBytes),
+                        episode.airDate,
+                    ).joinToString(" · "),
+                    style = MaterialTheme.typography.bodySmall,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                    maxLines = 1,
+                    overflow = TextOverflow.Ellipsis,
+                    modifier = Modifier.padding(top = 2.dp),
+                )
+            }
+            // Watched is a judgement the viewer is allowed to overrule: a
+            // half-watched episode they are done with, or one the 90 % rule
+            // marked seen because they sat through the credits.
+            IconButton(onClick = { onSetWatched(!episode.watched) }) {
+                Icon(
+                    if (episode.watched) Icons.Default.CheckCircle else Icons.Outlined.CheckCircle,
+                    contentDescription = if (episode.watched) "Mark unwatched" else "Mark watched",
+                    tint = if (episode.watched) {
+                        MaterialTheme.colorScheme.primary
+                    } else {
+                        MaterialTheme.colorScheme.outline
+                    },
+                )
+            }
+            // One slot, always the same width, whatever state the download
+            // is in — including "there is nothing to say", where an empty
+            // box keeps the rows above and below it aligned.
+            Box(Modifier.size(48.dp), contentAlignment = Alignment.Center) {
+                when {
+                    episode.offline -> Icon(
+                        Icons.Default.DownloadDone,
+                        contentDescription = "Saved offline",
+                        tint = MaterialTheme.colorScheme.tertiary,
+                    )
+                    running -> IconButton(onClick = { onPause(download!!) }) {
+                        Icon(Icons.Default.Pause, contentDescription = "Pause download")
+                    }
+                    download != null -> IconButton(onClick = { onResume(download) }) {
+                        Icon(Icons.Default.Download, contentDescription = "Resume download")
+                    }
+                    else -> IconButton(onClick = onDownload) {
+                        Icon(Icons.Default.Download, contentDescription = "Download")
+                    }
+                }
+            }
+        }
+        episode.providerOverview?.let {
+            Text(
+                it,
+                style = MaterialTheme.typography.bodySmall,
+                color = MaterialTheme.colorScheme.onSurfaceVariant,
+                maxLines = 2,
+                overflow = TextOverflow.Ellipsis,
+                modifier = Modifier.padding(top = 6.dp),
+            )
+        }
+        download?.takeIf { it.total > 0L && !episode.offline }?.let { active ->
+            AccentProgress(
+                progress = { (active.downloaded.toFloat() / active.total).coerceIn(0f, 1f) },
+                modifier = Modifier.fillMaxWidth().padding(top = 8.dp),
+                fill = solid(MaterialTheme.colorScheme.tertiary),
+            )
+            Text(
+                "${active.status.replaceFirstChar { it.uppercase() }} · " +
+                    "${formatBytes(active.downloaded.toULong())} of ${formatBytes(active.total.toULong())}",
+                style = MaterialTheme.typography.bodySmall,
+                color = MaterialTheme.colorScheme.onSurfaceVariant,
+            )
+        }
+    }
+}
+
+@Composable
+internal fun ChangeMatchDialog(
+    title: TitleRecord,
+    onDismiss: () -> Unit,
+    onChanged: () -> Unit,
+    onError: (Throwable) -> Unit,
+) {
+    var term by remember(title.key) { mutableStateOf(title.canonicalName ?: title.name) }
+    var searching by remember { mutableStateOf(false) }
+    var options by remember { mutableStateOf<List<MatchRecord>>(emptyList()) }
+    val scope = rememberCoroutineScope()
+    AlertDialog(
+        onDismissRequest = onDismiss,
+        title = { Text("Change match") },
+        text = {
+            Column {
+                Text("Search the configured metadata provider. Nothing is stored until you choose an entry.")
+                OutlinedTextField(term, { term = it }, Modifier.fillMaxWidth().padding(vertical = 8.dp), singleLine = true)
+                AccentButton(enabled = term.isNotBlank() && !searching, onClick = {
+                    searching = true
+                    scope.launch {
+                        runCatching {
+                            withContext(Dispatchers.IO) { NativeRuntime.engine().searchMatches(title.key, term) }
+                        }.onSuccess { options = it }.onFailure(onError)
+                        searching = false
+                    }
+                }) { Text(if (searching) "Searching…" else "Search") }
+                LazyColumn(Modifier.fillMaxWidth().heightIn(max = 300.dp)) {
+                    items(options, key = { "${it.provider}:${it.remoteId}" }) { option ->
+                        EdgedButton(
+                            onClick = {
+                                scope.launch {
+                                    runCatching {
+                                        withContext(Dispatchers.IO) { NativeRuntime.engine().chooseMatch(title.key, option) }
+                                    }.onSuccess { onChanged() }.onFailure(onError)
+                                }
+                            },
+                            modifier = Modifier.fillMaxWidth().padding(top = 6.dp),
+                        ) {
+                            Column(Modifier.fillMaxWidth()) {
+                                Text(option.name, fontWeight = FontWeight.SemiBold)
+                                Text(listOfNotNull(option.year?.toString(), option.originalName).joinToString(" · "))
+                            }
+                        }
+                    }
+                }
+            }
+        },
+        confirmButton = {
+            QuietButton(onClick = {
+                scope.launch {
+                    runCatching { withContext(Dispatchers.IO) { NativeRuntime.engine().forgetMatch(title.key) } }
+                        .onSuccess { onChanged() }.onFailure(onError)
+                }
+            }) { Text("Forget match") }
+        },
+        dismissButton = { TonalButton(onClick = onDismiss) { Text("Close") } },
+    )
+}
@@ -168,11 +168,21 @@ internal fun AccentProgress(
 */
@OptIn(ExperimentalMaterial3Api::class)
@Composable
-internal fun AccentTrack(state: SliderState, modifier: Modifier = Modifier) {
+internal fun AccentTrack(state: SliderState, modifier: Modifier = Modifier, buffered: Float = 0f) {
    val brush = accentBrush()
    Canvas(modifier.fillMaxWidth().height(TRACK_HEIGHT.dp)) {
        val radius = CornerRadius(size.height / 2)
        drawRoundRect(color = Color.White.copy(alpha = 0.30f), cornerRadius = radius)
+        // What is already read ahead, lighter than the rest and under the
+        // played part: a jump that lands in it costs no fetch.
+        val ahead = size.width * buffered.coerceIn(0f, 1f)
+        if (ahead >= size.height) {
+            drawRoundRect(
+                color = Color.White.copy(alpha = 0.55f),
+                size = Size(ahead, size.height),
+                cornerRadius = radius,
+            )
+        }
        val done = size.width * state.coercedValueAsFraction
        if (done >= size.height) {
            drawRoundRect(brush = brush, size = Size(done, size.height), cornerRadius = radius)
@@ -29,7 +29,7 @@ internal val ProtonShapes = Shapes(
 /** The radius `pstr-app` draws everything at. */
 internal const val CORNER = 8f

-/** A badge over artwork — `ui/mod.rs` is the other place this number lives. */
+/** A badge over artwork — `theme::radius::BADGE` in pstr-app is the other place this number lives. */
 internal const val CORNER_TIGHT = 4f

 /** A bottom sheet, which has no desktop counterpart. */
@@ -2,9 +2,28 @@ package io.narl.protonstream.ui.theme

 import androidx.compose.material3.Typography
 import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.text.font.Font
+import androidx.compose.ui.text.font.FontFamily
 import androidx.compose.ui.text.font.FontWeight
+import io.narl.protonstream.R
 import androidx.compose.ui.unit.sp

+/**
+ * Inter, the desktop client's face, from the same two files.
+ *
+ * Only Regular and SemiBold ship, as on the desktop. A `Medium` role resolves
+ * to Regular by the usual weight matching rather than to a synthesised bold,
+ * which is how the desktop draws it too.
+ *
+ * Above [ProtonTypography] on purpose: top-level properties initialise in
+ * file order, and a ramp built first would capture this as null and fall back
+ * to the system face without a word.
+ */
+internal val Inter = FontFamily(
+    Font(R.font.inter_regular, FontWeight.Normal),
+    Font(R.font.inter_semibold, FontWeight.SemiBold),
+)
+
 /**
 * The type ramp, which is the desktop client's type ramp.
 *
@@ -72,4 +91,5 @@ private fun role(size: Float, weight: FontWeight) = TextStyle(
    fontSize = size.sp,
    lineHeight = (size * 1.35f).sp,
    fontWeight = weight,
+    fontFamily = Inter,
 )
@@ -0,0 +1,20 @@
+<!--
+  The launcher tile: packaging/io.narl.proton-stream.svg's face gradient, on
+  the full 108dp canvas because the launcher cuts its own shape out of it.
+-->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:aapt="http://schemas.android.com/aapt"
+    android:width="108dp" android:height="108dp"
+    android:viewportWidth="108" android:viewportHeight="108">
+    <path android:pathData="M0,0h108v108h-108z">
+        <aapt:attr name="android:fillColor">
+            <gradient android:type="linear"
+                android:startX="0" android:startY="0"
+                android:endX="108" android:endY="108">
+                <item android:offset="0" android:color="#FFA48BFF" />
+                <item android:offset="0.55" android:color="#FF7552FF" />
+                <item android:offset="1" android:color="#FF5B36F2" />
+            </gradient>
+        </aapt:attr>
+    </path>
+</vector>
@@ -1,6 +1,32 @@
+<!--
+  The play mark from packaging/io.narl.proton-stream.svg, cut into the blocks a
+  revision is fetched in. The paths are in the SVG's 128-unit space; the group
+  maps its 104-unit tile onto the 72dp a launcher shows of a 108dp layer.
+-->
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:aapt="http://schemas.android.com/aapt"
    android:width="108dp" android:height="108dp"
    android:viewportWidth="108" android:viewportHeight="108">
-    <path android:fillColor="#CBA6F7" android:pathData="M24,22h60v64h-60z" />
-    <path android:fillColor="#1E1E2E" android:pathData="M45,39l26,15 -26,15z" />
+    <group
+        android:pivotX="64" android:pivotY="62"
+        android:scaleX="0.6923" android:scaleY="0.6923"
+        android:translateX="-10" android:translateY="-8">
+        <group android:translateY="3">
+            <clip-path android:pathData="M0,0h63v128h-63zM68.5,0h10v128h-10zM84,0h44v128h-44z" />
+            <path android:fillColor="#4D2E1596" android:pathData="M50,41.5v41a6,6 0,0 0,9.1 5.1l34.2,-20.5a6,6 0,0 0,0 -10.3L59.1,36.4A6,6 0,0 0,50 41.5z" />
+        </group>
+        <group>
+            <clip-path android:pathData="M0,0h63v128h-63zM68.5,0h10v128h-10zM84,0h44v128h-44z" />
+            <path android:pathData="M50,41.5v41a6,6 0,0 0,9.1 5.1l34.2,-20.5a6,6 0,0 0,0 -10.3L59.1,36.4A6,6 0,0 0,50 41.5z">
+                <aapt:attr name="android:fillColor">
+                    <gradient android:type="linear"
+                        android:startX="0" android:startY="36"
+                        android:endX="0" android:endY="88">
+                        <item android:offset="0" android:color="#FFFFFFFF" />
+                        <item android:offset="1" android:color="#FFECE6FF" />
+                    </gradient>
+                </aapt:attr>
+            </path>
+        </group>
+    </group>
 </vector>
@@ -0,0 +1,12 @@
+<!-- The foreground's glyph as one flat shape, for themed launcher icons. -->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp" android:height="108dp"
+    android:viewportWidth="108" android:viewportHeight="108">
+    <group
+        android:pivotX="64" android:pivotY="62"
+        android:scaleX="0.6923" android:scaleY="0.6923"
+        android:translateX="-10" android:translateY="-8">
+        <clip-path android:pathData="M0,0h63v128h-63zM68.5,0h10v128h-10zM84,0h44v128h-44z" />
+        <path android:fillColor="#FFFFFFFF" android:pathData="M50,41.5v41a6,6 0,0 0,9.1 5.1l34.2,-20.5a6,6 0,0 0,0 -10.3L59.1,36.4A6,6 0,0 0,50 41.5z" />
+    </group>
+</vector>
@@ -1,13 +1,16 @@
 <!--
  The status-bar glyph. Android tints small icons to a single colour and drops
-  everything that is not opaque, so this is the launcher mark reduced to one
-  white silhouette rather than the two-tone drawable.
+  everything that is not opaque, so this is the launcher's sliced play mark as
+  one white silhouette, scaled from the SVG's 128-unit space onto 24dp.
 -->
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
    android:width="24dp" android:height="24dp"
    android:viewportWidth="24" android:viewportHeight="24">
-    <path
-        android:fillColor="#FFFFFFFF"
-        android:fillType="evenOdd"
-        android:pathData="M4,4h16v16h-16zM10,8.5l5.5,3.5 -5.5,3.5z" />
+    <group
+        android:pivotX="70" android:pivotY="62"
+        android:scaleX="0.37" android:scaleY="0.37"
+        android:translateX="-58" android:translateY="-50">
+        <clip-path android:pathData="M0,0h63v128h-63zM68.5,0h10v128h-10zM84,0h44v128h-44z" />
+        <path android:fillColor="#FFFFFFFF" android:pathData="M50,41.5v41a6,6 0,0 0,9.1 5.1l34.2,-20.5a6,6 0,0 0,0 -10.3L59.1,36.4A6,6 0,0 0,50 41.5z" />
+    </group>
 </vector>
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+    <monochrome android:drawable="@drawable/ic_launcher_monochrome" />
+</adaptive-icon>
@@ -1,3 +1,9 @@
 <resources>
-    <string name="app_name">proton-stream</string>
+    <!-- Settings, recents, notifications and the share sheet: room for the full name. -->
+    <string name="app_name">Proton Stream</string>
+    <!--
+      Under the launcher icon, where about ten characters fit before the
+      launcher cuts the label off; "proton-stream" showed as "proton-st…".
+    -->
+    <string name="launcher_name">Stream</string>
 </resources>
@@ -0,0 +1,37 @@
+package io.narl.protonstream
+
+import android.content.Intent
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertNull
+import org.junit.Test
+
+class IncomingShareLinkTest {
+    private val link = "https://drive.proton.me/urls/ABC123#s3cr3t"
+
+    @Test
+    fun `a viewed share link is taken whole, fragment included`() {
+        assertEquals(link, shareLinkFrom(Intent.ACTION_VIEW, link, null))
+    }
+
+    @Test
+    fun `a viewed url that is not an https share link is ignored`() {
+        assertNull(shareLinkFrom(Intent.ACTION_VIEW, "https://drive.proton.me/u/0/", null))
+        assertNull(shareLinkFrom(Intent.ACTION_VIEW, "http://drive.proton.me/urls/ABC123#s3cr3t", null))
+    }
+
+    @Test
+    fun `a shared message yields the link inside it`() {
+        assertEquals(link, shareLinkFrom(Intent.ACTION_SEND, null, "Season two is up: $link enjoy"))
+        assertEquals(link, shareLinkFrom(Intent.ACTION_SEND, null, "(<$link>)"))
+    }
+
+    @Test
+    fun `a shared message without a link yields nothing`() {
+        assertNull(shareLinkFrom(Intent.ACTION_SEND, null, "no link here"))
+    }
+
+    @Test
+    fun `other actions are ignored`() {
+        assertNull(shareLinkFrom(Intent.ACTION_MAIN, link, link))
+    }
+}
@@ -0,0 +1,28 @@
+package io.narl.protonstream.ui
+
+import org.junit.Assert.assertEquals
+import org.junit.Test
+
+class ArtworkTest {
+    @Test
+    fun `initials skip the lower-case particles of a romanised name`() {
+        assertEquals("OK", initials("Oshi no Ko"))
+        assertEquals("AH", initials("Ano Hi Mita Hana no Namae o Bokutachi wa Mada Shiranai."))
+    }
+
+    @Test
+    fun `a one-word name has one initial`() {
+        assertEquals("A", initials("Akira"))
+    }
+
+    @Test
+    fun `a name with no capitals falls back to its first two words`() {
+        assertEquals("BW", initials("blue world order"))
+    }
+
+    @Test
+    fun `punctuation and separators are not words`() {
+        assertEquals("S2", initials("Steins;Gate - 2"))
+        assertEquals("", initials(" - "))
+    }
+}
@@ -0,0 +1,55 @@
+package io.narl.protonstream.ui
+
+import java.time.LocalDate
+import java.util.Locale
+import org.junit.Assert.assertEquals
+import org.junit.Test
+import uniffi.pstr_android.EpisodeRecord
+import uniffi.pstr_android.SeasonRecord
+import uniffi.pstr_android.TitleRecord
+import uniffi.pstr_android.TitleType
+
+class HistoryTest {
+    private fun episode(link: String, watched: Boolean, progress: Double?, lastPlayed: Long) = EpisodeRecord(
+        shareId = "s", volumeId = "v", linkId = link, name = "$link.mkv", label = link, detail = "$link.mkv",
+        season = 1u, number = null, size = null, progress = progress, resumeAt = progress?.let { it * 1000 },
+        watched = watched, offline = false, providerName = null, providerOverview = null, stillUrl = null,
+        airDate = null, lastPlayed = lastPlayed,
+    )
+
+    private fun title(key: String, vararg episodes: EpisodeRecord) = TitleRecord(
+        key = key, name = key, year = null, kind = TitleType.SERIES, watchedCount = 0uL,
+        episodeCount = episodes.size.toULong(), canonicalName = null, originalName = null, overview = null,
+        metadataProvider = null, metadataId = null, metadataYear = null, metadataKind = null, posterUrl = null,
+        backdropUrl = null, rating = null, genres = emptyList(), providerEpisodeCount = null, externalUrl = null,
+        manualMatch = false, seasons = listOf(SeasonRecord(1u, "Season 1", episodes.toList())),
+    )
+
+    @Test
+    fun `history is every started or finished episode, newest first, across titles`() {
+        val titles = listOf(
+            title(
+                "a",
+                episode("a1", watched = true, progress = 1.0, lastPlayed = 30),
+                // Marked unwatched again: a row at zero, which is not a play.
+                episode("a2", watched = false, progress = 0.0, lastPlayed = 40),
+                episode("a3", watched = false, progress = null, lastPlayed = 0),
+            ),
+            title("b", episode("b1", watched = false, progress = 0.4, lastPlayed = 50)),
+        )
+        val played = history(titles)
+        assertEquals(listOf("b1", "a1"), played.map { it.episode.linkId })
+        assertEquals(0, played.last().index)
+    }
+
+    @Test
+    fun `days are headed relative to today, then by date`() {
+        val today = LocalDate.of(2026, 10, 3) // a Saturday
+        val english = Locale.ENGLISH
+        assertEquals("Today", dayHeading(today, today, english))
+        assertEquals("Yesterday", dayHeading(today.minusDays(1), today, english))
+        assertEquals("Monday", dayHeading(LocalDate.of(2026, 9, 28), today, english))
+        assertEquals("26 September", dayHeading(LocalDate.of(2026, 9, 26), today, english))
+        assertEquals("3 October 2025", dayHeading(LocalDate.of(2025, 10, 3), today, english))
+    }
+}
@@ -0,0 +1,31 @@
+package io.narl.protonstream.ui
+
+import org.junit.Assert.assertEquals
+import org.junit.Test
+
+class LanguagePickerTest {
+    @Test
+    fun `a stored tag reads as its language in either ISO form`() {
+        assertEquals("Japanese", languageLabel("jpn"))
+        assertEquals("Japanese", languageLabel("ja"))
+        assertEquals("German", languageLabel("deu"))
+        assertEquals("German", languageLabel("ger"))
+    }
+
+    @Test
+    fun `a region suffix and capitals do not hide the language`() {
+        assertEquals("Portuguese", languageLabel("PT-br"))
+    }
+
+    @Test
+    fun `a tag not on the list is shown as typed, and blank is no preference`() {
+        assertEquals("tgl", languageLabel("tgl"))
+        assertEquals("No preference", languageLabel(null))
+        assertEquals("No preference", languageLabel("  "))
+    }
+
+    @Test
+    fun `every listed language has a two-letter form`() {
+        LANGUAGES.forEach { (code, name) -> assertEquals(code, name, languageLabel(code)) }
+    }
+}
@@ -0,0 +1,283 @@
+package io.narl.protonstream.ui
+
+import androidx.compose.foundation.layout.PaddingValues
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Surface
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.CompositionLocalProvider
+import androidx.compose.ui.test.junit4.createComposeRule
+import androidx.compose.ui.platform.LocalDensity
+import androidx.compose.ui.test.onRoot
+import androidx.compose.ui.unit.Density
+import androidx.test.core.app.ApplicationProvider
+import androidx.work.testing.WorkManagerTestInitHelper
+import com.github.takahirom.roborazzi.RobolectricDeviceQualifiers
+import com.github.takahirom.roborazzi.captureRoboImage
+import io.narl.protonstream.ui.theme.AppearanceState
+import io.narl.protonstream.ui.theme.ProtonFallback
+import io.narl.protonstream.ui.theme.ProtonStreamTheme
+import java.time.LocalDate
+import java.time.ZoneOffset
+import org.junit.Before
+import org.junit.Rule
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.robolectric.RobolectricTestRunner
+import org.robolectric.annotation.Config
+import org.robolectric.annotation.GraphicsMode
+import uniffi.pstr_android.EpisodeRecord
+import uniffi.pstr_android.OfflineRecord
+import uniffi.pstr_android.PaletteRecord
+import uniffi.pstr_android.SeasonRecord
+import uniffi.pstr_android.ShareRecord
+import uniffi.pstr_android.StorageUsageRecord
+import uniffi.pstr_android.TitleRecord
+import uniffi.pstr_android.TitleType
+
+/**
+ * Every screen, drawn from fixed records, against a committed image.
+ *
+ * The screens are about to be redesigned one by one, and a layout regression —
+ * a row that wraps, a button pushed off the edge — compiles and passes every
+ * other test. Here it is a changed PNG in review. No artwork is loaded: the
+ * bridge is not available on the host, so every tile shows its generated
+ * placeholder, which is also what a title without metadata looks like on a
+ * phone.
+ */
+@RunWith(RobolectricTestRunner::class)
+@GraphicsMode(GraphicsMode.Mode.NATIVE)
+@Config(qualifiers = RobolectricDeviceQualifiers.Pixel7)
+class ScreenshotTest {
+    @get:Rule val compose = createComposeRule()
+
+    @Before
+    fun setUp() {
+        WorkManagerTestInitHelper.initializeTestWorkManager(ApplicationProvider.getApplicationContext())
+        // The palette is process-wide and the sandbox outlives a test, so a
+        // light capture would otherwise repaint every one after it.
+        AppearanceState.apply(ProtonFallback)
+    }
+
+    private fun captureLight(name: String, content: @Composable () -> Unit) {
+        AppearanceState.apply(LATTE)
+        capture(name, content)
+    }
+
+    private fun capture(name: String, content: @Composable () -> Unit) {
+        compose.setContent {
+            ProtonStreamTheme {
+                CompositionLocalProvider(LocalArtworkLoading provides false) {
+                    Surface(color = MaterialTheme.colorScheme.background) { content() }
+                }
+            }
+        }
+        compose.onRoot().captureRoboImage("src/test/screenshots/$name.png")
+    }
+
+    @Test
+    fun `the library on a phone`() = capture("library-phone") {
+        LibraryScreen(LIBRARY, {}, { _, _ -> }, {}, {}, { _, _ -> }, { _, _ -> }, PaddingValues())
+    }
+
+    @Test
+    @Config(qualifiers = RobolectricDeviceQualifiers.MediumTablet)
+    fun `the library on a tablet`() = capture("library-tablet") {
+        LibraryScreen(LIBRARY, {}, { _, _ -> }, {}, {}, { _, _ -> }, { _, _ -> }, PaddingValues())
+    }
+
+    @Test
+    fun `the library in the light palette`() = captureLight("library-phone-light") {
+        LibraryScreen(LIBRARY, {}, { _, _ -> }, {}, {}, { _, _ -> }, { _, _ -> }, PaddingValues())
+    }
+
+    @Test
+    fun `a title in the light palette`() = captureLight("title-phone-light") {
+        TitleScreen(SERIES, true, { _, _ -> }, {}, {}, {}, { _, _ -> }, PaddingValues())
+    }
+
+    @Test
+    @Config(qualifiers = RobolectricDeviceQualifiers.MediumTablet)
+    fun `a title on a tablet`() = capture("title-tablet") {
+        TitleScreen(SERIES, true, { _, _ -> }, {}, {}, {}, { _, _ -> }, PaddingValues())
+    }
+
+    @Test
+    @Config(qualifiers = RobolectricDeviceQualifiers.MediumTablet)
+    fun `the history page on a tablet`() = capture("history-tablet") {
+        HistoryScreen(LIBRARY, { _, _ -> }, {}, { _, _ -> }, PaddingValues(), ZoneOffset.UTC, LocalDate.of(2026, 9, 21))
+    }
+
+    @Test
+    fun `the library at a large font scale`() = capture("library-phone-large-font") {
+        // Robolectric has no font-scale qualifier; the density is what Compose
+        // reads it from, so the scale is set there.
+        val density = LocalDensity.current
+        CompositionLocalProvider(LocalDensity provides Density(density.density, fontScale = 1.5f)) {
+            LibraryScreen(LIBRARY, {}, { _, _ -> }, {}, {}, { _, _ -> }, { _, _ -> }, PaddingValues())
+        }
+    }
+
+    @Test
+    fun `an empty library`() = capture("library-empty") {
+        LibraryScreen(AppUiState(loading = false), {}, { _, _ -> }, {}, {}, { _, _ -> }, { _, _ -> }, PaddingValues())
+    }
+
+    @Test
+    fun `the library while the catalog loads`() = capture("library-loading") {
+        LibraryScreen(AppUiState(), {}, { _, _ -> }, {}, {}, { _, _ -> }, { _, _ -> }, PaddingValues())
+    }
+
+    @Test
+    fun `a title with seasons`() = capture("title-phone") {
+        TitleScreen(SERIES, true, { _, _ -> }, {}, {}, {}, { _, _ -> }, PaddingValues())
+    }
+
+    @Test
+    fun `the shares page`() = capture("shares-phone") {
+        SharesScreen(LIBRARY.shares, { _, _, _ -> }, { _, _, _ -> }, {}, {}, null, {}, PaddingValues())
+    }
+
+    @Test
+    fun `the settings page`() = capture("settings-phone") {
+        SettingsScreen(LIBRARY, { _, _, _, _ -> }, {}, {}, {}, PaddingValues(), version = "1.0.0")
+    }
+
+    @Test
+    fun `the playback settings`() = capture("settings-playback") {
+        SettingsScreen(LIBRARY, { _, _, _, _ -> }, {}, {}, {}, PaddingValues(), SettingsPage.Playback)
+    }
+
+    @Test
+    fun `the storage settings`() = capture("settings-storage") {
+        SettingsScreen(LIBRARY, { _, _, _, _ -> }, {}, {}, {}, PaddingValues(), SettingsPage.Storage)
+    }
+
+    @Test
+    fun `the history page`() = capture("history-phone") {
+        // Fixed day and zone: "Today" and "Yesterday" are relative, and an
+        // image that changes with the date is no baseline.
+        HistoryScreen(LIBRARY, { _, _ -> }, {}, { _, _ -> }, PaddingValues(), ZoneOffset.UTC, LocalDate.of(2026, 9, 21))
+    }
+
+    @Test
+    fun `the downloads page with a season saved`() = capture("downloads-phone") {
+        val saved = SERIES.seasons.first().episodes.take(2).map {
+            OfflineRecord(it.shareId, it.linkId, "revision", 1_300_000_000uL, it)
+        }
+        // One title: the fixtures reuse link ids across titles, so with the
+        // whole library the episodes would be filed under whichever came last.
+        DownloadsScreen(LIBRARY.copy(titles = listOf(SERIES), offline = saved), {}, {}, {}, {}, PaddingValues())
+    }
+
+    @Test
+    fun `the downloads page with nothing offline`() = capture("downloads-empty") {
+        DownloadsScreen(LIBRARY, {}, {}, {}, {}, PaddingValues())
+    }
+
+    private companion object {
+        /** Catppuccin Latte with the default accent, as `Palette::resolve` gives it. */
+        val LATTE = PaletteRecord(
+            background = 0xFFEFF1F5u,
+            surface = 0xFFE6E9EFu,
+            sunken = 0xFFDCE0E8u,
+            card = 0xFFCCD0DAu,
+            cardHover = 0xFFBCC0CCu,
+            border = 0xFFBCC0CCu,
+            text = 0xFF4C4F69u,
+            muted = 0xFF6C6F85u,
+            accent = 0xFF732FCCu,
+            accentAlt = 0xFF1856D1u,
+            accentDim = 0xFFC4BBE4u,
+            onAccent = 0xFFEFF1F5u,
+            danger = 0xFFD20F39u,
+            elevated = 0xFFAAAEBDu,
+            dangerDim = 0xFFE7D1D5u,
+            light = true,
+        )
+
+        fun episode(season: UInt, number: UInt, watched: Boolean = false, progress: Double? = null): EpisodeRecord {
+            // `detail` is the filename unless the filename named the episode,
+            // which is what the bridge sends.
+            val file = "[Group] Oshi no Ko - S%02dE%02d.mkv".format(season.toInt(), number.toInt())
+            return episodeRecord(season, number, file, watched, progress)
+        }
+
+        fun episodeRecord(season: UInt, number: UInt, file: String, watched: Boolean, progress: Double?) = EpisodeRecord(
+            shareId = "share",
+            volumeId = "volume",
+            linkId = "s${season}e$number",
+            name = file,
+            label = "S%02dE%02d".format(season.toInt(), number.toInt()),
+            detail = file,
+            season = season,
+            number = number,
+            size = 1_300_000_000uL,
+            progress = progress,
+            resumeAt = progress?.let { it * 1440 },
+            watched = watched,
+            offline = false,
+            providerName = if (number == 1u) "Mother and Children" else null,
+            providerOverview = null,
+            stillUrl = null,
+            airDate = null,
+            // 2026-09-21 for the part-watched one, the day before for the rest.
+            lastPlayed = when {
+                progress != null -> 1_790_000_000L
+                watched -> 1_789_900_000L - number.toLong() * 600
+                else -> 0L
+            },
+        )
+
+        fun title(key: String, name: String, seasons: List<SeasonRecord>, overview: String? = null) = TitleRecord(
+            key = key,
+            name = name,
+            year = 2023u,
+            kind = TitleType.SERIES,
+            watchedCount = seasons.sumOf { s -> s.episodes.count { it.watched } }.toULong(),
+            episodeCount = seasons.sumOf { it.episodes.size }.toULong(),
+            canonicalName = null,
+            originalName = null,
+            overview = overview,
+            metadataProvider = null,
+            metadataId = null,
+            metadataYear = null,
+            metadataKind = null,
+            posterUrl = null,
+            backdropUrl = null,
+            rating = 8.4,
+            genres = listOf("Drama", "Mystery"),
+            providerEpisodeCount = null,
+            externalUrl = null,
+            manualMatch = false,
+            seasons = seasons,
+        )
+
+        val SERIES = title(
+            "oshi-no-ko",
+            "Oshi no Ko",
+            listOf(
+                SeasonRecord(1u, "Season 1", (1u..4u).map { episode(1u, it, watched = it < 3u) }),
+                SeasonRecord(2u, "Season 2", (1u..3u).map { episode(2u, it, progress = if (it == 1u) 0.4 else null) }),
+            ),
+            overview = "A doctor in a countryside clinic is reborn as the child of the idol he followed.",
+        )
+
+        val FILM = title("akira", "Akira", listOf(SeasonRecord(null, "Film", listOf(episode(1u, 1u)))))
+            .copy(kind = TitleType.FILM, year = 1988u)
+
+        val LIBRARY = AppUiState(
+            loading = false,
+            titles = listOf(
+                FILM,
+                SERIES,
+                title("ano-hana", "Ano Hi Mita Hana no Namae o Bokutachi wa Mada Shiranai.", listOf(SeasonRecord(1u, "Season 1", (1u..11u).map { episode(1u, it) }))),
+                title("bleach", "Bleach", listOf(SeasonRecord(1u, "Season 1", (1u..2u).map { episode(1u, it) }))),
+            ),
+            shares = listOf(
+                ShareRecord("anime", "anime", true),
+                ShareRecord("films", "films", false),
+            ),
+            storage = StorageUsageRecord(6_400_000_000uL, 3uL, 0uL, 1_100_000_000uL),
+        )
+    }
+}
@@ -14,6 +14,7 @@ androidx-test-core = "1.7.0"
 androidx-test-junit = "1.3.0"
 androidx-test-runner = "1.7.0"
 ktlint-plugin = "13.1.0"
+roborazzi = "1.76.0"

 [libraries]
 androidx-core = { module = "androidx.core:core-ktx", version = "1.17.0" }
@@ -41,9 +42,13 @@ robolectric = { module = "org.robolectric:robolectric", version.ref = "robolectr
 androidx-test-core = { module = "androidx.test:core-ktx", version.ref = "androidx-test-core" }
 androidx-test-junit = { module = "androidx.test.ext:junit", version.ref = "androidx-test-junit" }
 androidx-test-runner = { module = "androidx.test:runner", version.ref = "androidx-test-runner" }
+roborazzi = { module = "io.github.takahirom.roborazzi:roborazzi", version.ref = "roborazzi" }
+roborazzi-compose = { module = "io.github.takahirom.roborazzi:roborazzi-compose", version.ref = "roborazzi" }
+roborazzi-junit-rule = { module = "io.github.takahirom.roborazzi:roborazzi-junit-rule", version.ref = "roborazzi" }

 [plugins]
 android-application = { id = "com.android.application", version.ref = "agp" }
 kotlin-android = { id = "org.jetbrains.kotlin.android", version.ref = "kotlin" }
 kotlin-compose = { id = "org.jetbrains.kotlin.plugin.compose", version.ref = "kotlin" }
 ktlint = { id = "org.jlleitschuh.gradle.ktlint", version.ref = "ktlint-plugin" }
+roborazzi = { id = "io.github.takahirom.roborazzi", version.ref = "roborazzi" }
@@ -717,7 +717,6 @@ struct Connection {
    generation: u64,
    library: Arc<SharedLibrary>,
    open_failures: Vec<String>,
-    #[allow(dead_code)]
    source: StreamSource,
 }

@@ -754,6 +753,9 @@ pub struct AndroidEngine {
    /// between one episode and the next, so age — not just a share-store
    /// mutation — is a reason to reauthenticate before opening anything.
    session_refreshed: Mutex<HashMap<String, std::time::Instant>>,
+    /// The streaming cache's budget in bytes, for the next connection and,
+    /// through [`AndroidEngine::set_stream_cache_budget`], the open one.
+    cache_budget: AtomicU64,
 }

 /// How long a visitor session is assumed good for without a refresh.
@@ -798,6 +800,7 @@ impl AndroidEngine {
            share_generation: AtomicU64::new(0),
            thumbnails: tokio::sync::Semaphore::new(THUMBNAIL_CONCURRENCY),
            session_refreshed: Mutex::new(HashMap::new()),
+            cache_budget: AtomicU64::new(DiskCacheConfig::DEFAULT_BUDGET_BYTES),
        }))
    }

@@ -1279,6 +1282,22 @@ impl AndroidEngine {
        .map_err(BridgeError::from_display)?
    }

+    /// Set how much the streaming cache may hold. An open connection's cache
+    /// evicts down to it at once; a lower budget is a request for the space
+    /// back, not only a limit on what comes next.
+    pub fn set_stream_cache_budget(&self, bytes: u64) {
+        self.cache_budget.store(bytes, Ordering::Release);
+        let source = self
+            .connection
+            .lock()
+            .as_ref()
+            .map(|open| open.source.clone());
+        if let Some(source) = source {
+            self.runtime
+                .spawn(async move { source.set_disk_budget(bytes).await });
+        }
+    }
+
    /// Drop the cached blocks. Rebuildable by definition: this is the one thing
    /// here that can be reclaimed without losing something the viewer chose.
    pub fn clear_block_cache(&self) -> Result<u64, BridgeError> {
@@ -1723,8 +1742,10 @@ impl AndroidEngine {
            let opener = Arc::new(LibraryOpener::new(Arc::clone(&library)));
            let source = StreamSource::new(
                opener,
-                StreamConfig::default()
-                    .with_disk_cache(DiskCacheConfig::new(self.dirs.block_cache())),
+                StreamConfig::default().with_disk_cache(
+                    DiskCacheConfig::new(self.dirs.block_cache())
+                        .with_budget(self.cache_budget.load(Ordering::Acquire)),
+                ),
            )
            .await
            .map_err(BridgeError::from_display)?;
@@ -2,3 +2,9 @@
 # UniFFI's default JVM cleaner references java.lang.ref.Cleaner (API 33).
 # Android uses the JNA cleaner, which is available on our minSdk 31 runtime.
 disable_java_cleaner = true
+
+[bindings.swift]
+# The iOS client (`ios/`) compiles the generated file straight into the app
+# target and reaches the C side through its bridging header, so the names are
+# what that header and `ios/project.yml` expect.
+module_name = "PstrBridge"
@@ -24,17 +24,25 @@ tracing.workspace = true
 tracing-subscriber.workspace = true
 eframe.workspace = true
 egui.workspace = true
+egui-phosphor.workspace = true
 image.workspace = true
 sha2.workspace = true
 parking_lot.workspace = true
 serde.workspace = true
 serde_json.workspace = true
 directories.workspace = true
+chrono.workspace = true
 souvlaki.workspace = true

+[dev-dependencies]
+skrifa.workspace = true
+
 [target.'cfg(target_os = "linux")'.dependencies]
 dbus.workspace = true

 [target.'cfg(windows)'.dependencies]
-windows-sys = { workspace = true, features = ["Win32_System_Power"] }
+# Named pipes, for handing a second launch's request to the open window.
+tokio = { workspace = true, features = ["net"] }
+windows-sys = { workspace = true, features = ["Win32_System_Power", "Win32_System_Registry"] }
+tauri-winrt-notification.workspace = true
 raw-window-handle = "0.6"
@@ -0,0 +1,92 @@
+Copyright (c) 2016 The Inter Project Authors (https://github.com/rsms/inter)
+
+This Font Software is licensed under the SIL Open Font License, Version 1.1.
+This license is copied below, and is also available with a FAQ at:
+http://scripts.sil.org/OFL
+
+-----------------------------------------------------------
+SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
+-----------------------------------------------------------
+
+PREAMBLE
+The goals of the Open Font License (OFL) are to stimulate worldwide
+development of collaborative font projects, to support the font creation
+efforts of academic and linguistic communities, and to provide a free and
+open framework in which fonts may be shared and improved in partnership
+with others.
+
+The OFL allows the licensed fonts to be used, studied, modified and
+redistributed freely as long as they are not sold by themselves. The
+fonts, including any derivative works, can be bundled, embedded,
+redistributed and/or sold with any software provided that any reserved
+names are not used by derivative works. The fonts and derivatives,
+however, cannot be released under any other type of license. The
+requirement for fonts to remain under this license does not apply
+to any document created using the fonts or their derivatives.
+
+DEFINITIONS
+"Font Software" refers to the set of files released by the Copyright
+Holder(s) under this license and clearly marked as such. This may
+include source files, build scripts and documentation.
+
+"Reserved Font Name" refers to any names specified as such after the
+copyright statement(s).
+
+"Original Version" refers to the collection of Font Software components as
+distributed by the Copyright Holder(s).
+
+"Modified Version" refers to any derivative made by adding to, deleting,
+or substituting -- in part or in whole -- any of the components of the
+Original Version, by changing formats or by porting the Font Software to a
+new environment.
+
+"Author" refers to any designer, engineer, programmer, technical
+writer or other person who contributed to the Font Software.
+
+PERMISSION AND CONDITIONS
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of the Font Software, to use, study, copy, merge, embed, modify,
+redistribute, and sell modified and unmodified copies of the Font
+Software, subject to the following conditions:
+
+1) Neither the Font Software nor any of its individual components,
+in Original or Modified Versions, may be sold by itself.
+
+2) Original or Modified Versions of the Font Software may be bundled,
+redistributed and/or sold with any software, provided that each copy
+contains the above copyright notice and this license. These can be
+included either as stand-alone text files, human-readable headers or
+in the appropriate machine-readable metadata fields within text or
+binary files as long as those fields can be easily viewed by the user.
+
+3) No Modified Version of the Font Software may use the Reserved Font
+Name(s) unless explicit written permission is granted by the corresponding
+Copyright Holder. This restriction only applies to the primary font name as
+presented to the users.
+
+4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font
+Software shall not be used to promote, endorse or advertise any
+Modified Version, except to acknowledge the contribution(s) of the
+Copyright Holder(s) and the Author(s) or with their explicit written
+permission.
+
+5) The Font Software, modified or unmodified, in part or in whole,
+must be distributed entirely under this license, and must not be
+distributed under any other license. The requirement for fonts to
+remain under this license does not apply to any document created
+using the Font Software.
+
+TERMINATION
+This license becomes null and void if any of the above conditions are
+not met.
+
+DISCLAIMER
+THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
+OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE
+COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
+DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM
+OTHER DEALINGS IN THE FONT SOFTWARE.
@@ -46,6 +46,7 @@ impl FrameTimer {
            started: std::time::Instant::now(),
            page: match page {
                Page::Library => "library",
+                Page::History => "history",
                Page::Title(_) => "title",
                Page::Shares => "shares",
                Page::Downloads => "downloads",
@@ -80,6 +81,8 @@ const UP_NEXT_SECONDS: f64 = 10.0;
 #[derive(Debug, Clone, PartialEq, Eq)]
 pub enum Page {
    Library,
+    /// Everything played, newest first.
+    History,
    /// One title, by [`pstr_core::library::Title::key`].
    Title(String),
    Shares,
@@ -91,6 +94,15 @@ pub enum Page {
    Player,
 }

+/// The pages in the top bar, in order. Ctrl+1 to Ctrl+5 go by position here.
+const NAV: [Page; 5] = [
+    Page::Library,
+    Page::History,
+    Page::Shares,
+    Page::Downloads,
+    Page::Settings,
+];
+
 /// Something a click asked for, applied once the frame is drawn.
 pub enum Action {
    Goto(Page),
@@ -177,6 +189,14 @@ pub enum Action {
        share_id: String,
        link_id: String,
    },
+    /// Take one file off the history page: forget its position and its
+    /// watched mark, with an Undo.
+    RemoveFromHistory {
+        share_id: String,
+        link_id: String,
+    },
+    /// Open or close the list of episodes beside the picture.
+    ToggleEpisodes,
    /// Put watch states back as they were — what Undo does.
    RestoreWatch(Vec<(String, String, pstr_core::catalog::WatchState)>),
    ClearStreamCache,
@@ -293,6 +313,8 @@ pub struct LibraryView {
    built_with: (Filter, Sort),
    /// Indices into [`Library::titles`].
    pub matches: Vec<usize>,
+    /// Every played episode, newest first, for the history page.
+    pub history: Vec<ui::history::Entry>,
    /// The "Continue watching" shelf, most recent first, as indices.
    pub resumable: Vec<usize>,
    /// The library changed under the lists.
@@ -366,6 +388,7 @@ impl LibraryView {
        self.matches = matches.into_iter().filter_map(index_of).collect();
        self.built_with = (self.filter, self.sort);
        if self.stale {
+            self.history = ui::history::entries(library);
            self.resumable = library
                .continue_watching()
                .into_iter()
@@ -394,6 +417,8 @@ pub struct ShareForm {
 pub struct App {
    engine: Engine,
    events: Receiver<Event>,
+    /// What later launches asked for. See [`crate::instance`].
+    requests: Receiver<crate::instance::Request>,
    pub page: Page,
    pub library: Library,
    pub shares: Vec<Share>,
@@ -435,6 +460,8 @@ pub struct App {
    /// Chapters already skipped on their own in this player, so seeking back
    /// into an opening on purpose is not undone a frame later.
    auto_skipped: (u64, Vec<i64>),
+    /// Whether the episode list is out on the player page.
+    pub episode_drawer: bool,
    /// Set while the window is fullscreen, so `F` can toggle rather than only
    /// ever entering. egui has no way to ask the platform.
    pub fullscreen: bool,
@@ -473,13 +500,17 @@ impl App {
        cc: &eframe::CreationContext<'_>,
        runtime: std::sync::Arc<tokio::runtime::Runtime>,
        dirs: AppDirs,
+        instance: crate::instance::Listener,
+        request: crate::instance::Request,
    ) -> anyhow::Result<Self> {
+        let requests = instance.serve(&runtime, &cc.egui_ctx, request);
        // After the engine, not before: the engine is what reads the stored
        // theme, and a window that paints one frame in the default palette
        // before switching is a window that flashes on every launch.
        let window = crate::window::WindowMemory::new(dirs.window_file());
+        let notifier = crate::notify::Notifier::new(&dirs.cache);
        let (engine, events) = Engine::new(runtime, dirs, cc.egui_ctx.clone())?;
-        theme::install_font_fallbacks(&cc.egui_ctx);
+        theme::install_fonts(&cc.egui_ctx);
        theme::apply(&cc.egui_ctx, engine.appearance());

        // Paint from the catalog immediately; the network catches up. A library
@@ -493,6 +524,7 @@ impl App {
        Ok(Self {
            engine,
            events,
+            requests,
            page: Page::Library,
            library: Library::default(),
            shares: Vec::new(),
@@ -517,6 +549,7 @@ impl App {
            warmed: 0,
            auto_skipped: (0, Vec::new()),
            fullscreen: false,
+            episode_drawer: false,
            opening: None,
            connecting: true,
            crawling: false,
@@ -526,7 +559,7 @@ impl App {
            media_cover: None,
            inhibitor: crate::inhibit::Inhibitor::new(),
            shown_page: (None, 0.0),
-            notifier: crate::notify::Notifier::new(),
+            notifier,
            downloads: Vec::new(),
            offline_files: std::collections::HashSet::new(),
            confirm_partial_delete: None,
@@ -1053,6 +1086,39 @@ impl App {
        self.engine.set_playback_prefs(prefs, commit);
    }

+    /// Reset one file to never played, with an Undo. What leaving Continue
+    /// watching and leaving the history both come down to: the two are read
+    /// off the same watch state.
+    fn forget_watch(
+        &mut self,
+        ctx: &egui::Context,
+        share_id: String,
+        link_id: String,
+        place: &str,
+    ) {
+        let found = self.library.titles.iter().find_map(|title| {
+            let episode = title.episodes().find(|episode| {
+                episode.node.share_id == share_id && episode.node.link_id == link_id
+            })?;
+            Some((title.name.clone(), episode.watch))
+        });
+        let Some((name, Some(before))) = found else {
+            return;
+        };
+        self.engine.save_watch_state(
+            share_id.clone(),
+            link_id.clone(),
+            watch_state(0.0, before.duration_secs, false),
+        );
+        let now = ctx.input(|input| input.time);
+        self.toasts.push_with(
+            now,
+            format!("removed {name} from {place}"),
+            "Undo",
+            Action::RestoreWatch(vec![(share_id, link_id, before)]),
+        );
+    }
+
    fn apply(&mut self, ctx: &egui::Context, action: Action) {
        match action {
            Action::Goto(page) => self.page = page,
@@ -1318,28 +1384,12 @@ impl App {
                );
            }
            Action::ForgetPosition { share_id, link_id } => {
-                let found = self.library.titles.iter().find_map(|title| {
-                    let episode = title.episodes().find(|episode| {
-                        episode.node.share_id == share_id && episode.node.link_id == link_id
-                    })?;
-                    Some((title.name.clone(), episode.watch))
-                });
-                let Some((name, Some(before))) = found else {
-                    return;
-                };
-                self.engine.save_watch_state(
-                    share_id.clone(),
-                    link_id.clone(),
-                    watch_state(0.0, before.duration_secs, false),
-                );
-                let now = ctx.input(|input| input.time);
-                self.toasts.push_with(
-                    now,
-                    format!("removed {name} from Continue watching"),
-                    "Undo",
-                    Action::RestoreWatch(vec![(share_id, link_id, before)]),
-                );
+                self.forget_watch(ctx, share_id, link_id, "Continue watching");
            }
+            Action::RemoveFromHistory { share_id, link_id } => {
+                self.forget_watch(ctx, share_id, link_id, "history");
+            }
+            Action::ToggleEpisodes => self.episode_drawer = !self.episode_drawer,
            Action::RestoreWatch(states) => {
                for (share_id, link_id, state) in states {
                    self.engine.save_watch_state(share_id, link_id, state);
@@ -1432,14 +1482,14 @@ impl App {
        focus_search: bool,
    ) {
        ui.horizontal(|ui| {
-            ui.add_space(4.0);
+            ui.add_space(theme::space::XS);
            ui.label(
                theme::Role::Heading
                    .rich("proton-stream")
                    .strong()
                    .color(theme::accent()),
            );
-            ui.add_space(12.0);
+            ui.add_space(theme::space::L);

            let on_library = matches!(self.page, Page::Library | Page::Title(_));
            let active = self
@@ -1459,12 +1509,13 @@ impl App {
            } else {
                format!("Downloads ({active})")
            };
-            let pages = [Page::Library, Page::Shares, Page::Downloads, Page::Settings];
+            let pages = NAV;
            let clicked = ui::tabs(
                ui,
                ui.id().with("nav"),
                &[
                    ("Library", on_library),
+                    ("History", self.page == Page::History),
                    ("Shares", self.page == Page::Shares),
                    (&downloads, self.page == Page::Downloads),
                    ("Settings", self.page == Page::Settings),
@@ -1475,7 +1526,7 @@ impl App {
            }

            ui.with_layout(egui::Layout::right_to_left(egui::Align::Center), |ui| {
-                ui.add_space(4.0);
+                ui.add_space(theme::space::XS);
                if self.crawling {
                    if ui
                        .small_button("Stop")
@@ -1493,7 +1544,10 @@ impl App {
                    ui.add(egui::Spinner::new().size(16.0));
                    ui.label(ui::muted("connecting"));
                } else if ui
-                    .button("Refresh")
+                    .button(format!(
+                        "{}  Refresh",
+                        egui_phosphor::regular::ARROW_CLOCKWISE
+                    ))
                    .on_hover_text("Re-crawl every share")
                    .clicked()
                {
@@ -1501,7 +1555,7 @@ impl App {
                }

                if on_library && !self.library.is_empty() {
-                    ui.add_space(8.0);
+                    ui.add_space(theme::space::M);
                    ui::search_field(ui, search, focus_search);
                }
            });
@@ -1524,6 +1578,15 @@ impl eframe::App for App {
        self.window.observe(ctx);

        let mut actions: Vec<Action> = Vec::new();
+        while let Ok(request) = self.requests.try_recv() {
+            // A second launch is someone looking for this window, so it comes
+            // forward even when there is nothing else to do.
+            ctx.send_viewport_cmd(egui::ViewportCommand::Minimized(false));
+            ctx.send_viewport_cmd(egui::ViewportCommand::Focus);
+            if let crate::instance::Request::AddShare(url) = request {
+                actions.push(Action::PasteShare(url));
+            }
+        }
        self.media.drain(self.playback.as_ref(), &mut actions);
        let cover = self.media_cover();
        self.media.show(self.playback.as_ref(), cover.as_deref());
@@ -1552,7 +1615,13 @@ impl eframe::App for App {
                speed: playback.speed,
                skip_to: playback.skippable().map(|(_, end)| end),
            });
-            shortcuts(ctx, self.fullscreen, state, &mut actions);
+            shortcuts(
+                ctx,
+                self.fullscreen,
+                self.episode_drawer,
+                state,
+                &mut actions,
+            );

            // Before the draw, because drawing does not mutate — and it can
            // push an action of its own, which is why it takes the same list.
@@ -1562,8 +1631,30 @@ impl eframe::App for App {
                playback,
                opening,
                overlay,
+                engine,
+                library,
+                thumbs,
+                posters,
+                metadata,
+                episodes,
+                episode_drawer,
                ..
            } = self;
+            let list = playback
+                .as_ref()
+                .and_then(|playback| library.get(&playback.target.title_key))
+                .filter(|title| title.episode_count() > 1)
+                .map(|title| ui::player::Episodes {
+                    title,
+                    art: ui::Art {
+                        engine,
+                        thumbs,
+                        posters,
+                        metadata,
+                        episodes,
+                    },
+                    open: *episode_drawer,
+                });
            // No panels: the controls are drawn over the picture, and a nav bar
            // above a film is the one thing every player agrees not to do.
            egui::CentralPanel::default()
@@ -1578,6 +1669,7 @@ impl eframe::App for App {
                            overlay,
                            up_next,
                            neighbours,
+                            episodes: list,
                        },
                        &mut actions,
                    );
@@ -1773,6 +1865,9 @@ impl eframe::App for App {
                            ui::settings::show(ui, settings, prefs, api_key, &mut actions)
                        }
                        Page::Downloads => ui::downloads::show(ui, downloads, &mut actions),
+                        Page::History => {
+                            ui::history::show(ui, &mut art, library, &view.history, &mut actions)
+                        }
                        // Drawn above, without any of these panels.
                        Page::Player => {}
                    }
@@ -1911,7 +2006,7 @@ fn screenshot_name(title: &str, caption: &str, position: f64) -> String {
 /// rather than in one: the cut between two pages of tiles reads as a flicker,
 /// a short fade as a change of place.
 fn page_fade(ctx: &egui::Context, shown: &mut (Option<Page>, f64), page: &Page) -> f32 {
-    const SECONDS: f64 = 0.14;
+    const SECONDS: f64 = theme::motion::STATE as f64;
    let now = ctx.input(|input| input.time);
    if shown.0.as_ref() != Some(page) {
        // The first page of a launch is there at once; only changes fade.
@@ -1922,7 +2017,7 @@ fn page_fade(ctx: &egui::Context, shown: &mut (Option<Page>, f64), page: &Page)
    if progress < 1.0 {
        ctx.request_repaint();
    }
-    1.0 - (1.0 - progress).powi(3)
+    theme::motion::ease_out(progress)
 }

 /// What the top bar says while shares are being listed: one share by name,
@@ -2005,13 +2100,14 @@ fn global_shortcuts(ctx: &egui::Context, page: &Page, actions: &mut Vec<Action>)
            (Key::Num2, 1),
            (Key::Num3, 2),
            (Key::Num4, 3),
+            (Key::Num5, 4),
        ] {
            if input.consume_key(Modifiers::COMMAND, key) {
                tab = Some(index);
            }
        }
        if input.consume_key(Modifiers::COMMAND, Key::Comma) {
-            tab = Some(3);
+            tab = Some(4);
        }
        // A share link pasted anywhere outside a text field is someone adding
        // a share, wherever they happen to be.
@@ -2026,7 +2122,7 @@ fn global_shortcuts(ctx: &egui::Context, page: &Page, actions: &mut Vec<Action>)
        }
    });
    if let Some(index) = tab {
-        let page = [Page::Library, Page::Shares, Page::Downloads, Page::Settings][index].clone();
+        let page = NAV[index].clone();
        actions.push(Action::Goto(page));
    }
 }
@@ -2069,6 +2165,7 @@ fn step_speed(speed: f64, faster: bool) -> f64 {
 fn shortcuts(
    ctx: &egui::Context,
    fullscreen: bool,
+    drawer: bool,
    playing: Option<PlayerKeys>,
    actions: &mut Vec<Action>,
 ) {
@@ -2098,6 +2195,7 @@ fn shortcuts(
            Key::S,
            Key::OpenBracket,
            Key::CloseBracket,
+            Key::E,
            Key::Escape,
        ]
        .into_iter()
@@ -2141,6 +2239,9 @@ fn shortcuts(
            // Escape leaves fullscreen first and the page second, which is what
            // it does everywhere else and what stops one press from both
            // un-maximising the window and hiding the film.
+            Key::E => actions.push(Action::ToggleEpisodes),
+            // The episode list is the innermost thing open, so it goes first.
+            Key::Escape if drawer => actions.push(Action::ToggleEpisodes),
            Key::Escape if fullscreen => actions.push(Action::ToggleFullscreen),
            Key::Escape => actions.push(Action::LeavePlayer),
            _ => {}
@@ -307,6 +307,10 @@ pub struct Engine {
    /// whenever the settings change, so nothing holds a client for a provider
    /// the viewer has switched away from.
    metadata: Arc<Mutex<Enrichment>>,
+    /// False until [`Engine::metadata`] holds what the settings resolve to.
+    /// Only ever false at launch, while the API key is read off the UI
+    /// thread; see [`Engine::new`].
+    enrichment_settled: Arc<tokio::sync::watch::Sender<bool>>,
    /// Volume, mute and language preferences. Held here rather than in the UI
    /// because a new player is built from them, and the player is started from
    /// a background event.
@@ -402,6 +406,21 @@ impl Engine {
            Appearance::default()
        });

+        // A provider with an API key needs it out of the OS credential store,
+        // and that can be a D-Bus round trip to a keyring that has to unlock
+        // first — not something to hold the first frame for. Built on the
+        // blocking pool instead; until it lands, everything that needs the
+        // provider waits for it rather than concluding there is none.
+        let deferred = config.enabled && config.provider.needs_api_key();
+        let enrichment = if deferred {
+            Enrichment {
+                config: config.clone(),
+                service: None,
+            }
+        } else {
+            Enrichment::build(config.clone())
+        };
+
        let track_prefs = catalog.all_title_track_prefs().unwrap_or_else(|error| {
            tracing::warn!("read show track preferences: {error}");
            HashMap::new()
@@ -415,7 +434,8 @@ impl Engine {
            catalog: Arc::new(Mutex::new(catalog)),
            thumbnails: Arc::new(tokio::sync::Semaphore::new(THUMBNAIL_CONCURRENCY)),
            lookups: Arc::new(tokio::sync::Semaphore::new(LOOKUP_CONCURRENCY)),
-            metadata: Arc::new(Mutex::new(Enrichment::build(config))),
+            metadata: Arc::new(Mutex::new(enrichment)),
+            enrichment_settled: Arc::new(tokio::sync::watch::channel(!deferred).0),
            prefs: Arc::new(Mutex::new(prefs)),
            appearance: Arc::new(Mutex::new(appearance)),
            track_prefs: Arc::new(Mutex::new(track_prefs)),
@@ -428,6 +448,12 @@ impl Engine {
            events,
            ctx,
        };
+        if deferred {
+            let deferred = engine.clone();
+            engine.runtime.spawn_blocking(move || {
+                deferred.install_enrichment(Enrichment::build(config), true);
+            });
+        }
        Ok((engine, receiver))
    }

@@ -537,12 +563,15 @@ impl Engine {

    // ---------------------------------------------------------------- shares

-    /// Re-read the share list.
+    /// Re-read the share list, off the UI thread: it is a file read, and at
+    /// launch the first frame should not wait on the disk for it.
    pub fn load_shares(&self) {
-        match self.store.list() {
-            Ok(shares) => self.emit(Event::Shares(shares)),
-            Err(error) => self.fail("read the share list", error),
-        }
+        let engine = self.clone();
+        self.runtime
+            .spawn_blocking(move || match engine.store.list() {
+                Ok(shares) => engine.emit(Event::Shares(shares)),
+                Err(error) => engine.fail("read the share list", error),
+            });
    }

    /// Add a share, then open and crawl it — which is what "add" means to
@@ -1742,6 +1771,38 @@ impl Engine {
        });
    }

+    /// Put `built` in place and mark the provider settled.
+    ///
+    /// `only_if_unsettled` is for the launch-time build: a settings change
+    /// that landed while it was reading the keyring is newer, and wins. The
+    /// check and the write share the lock, so the two cannot interleave.
+    fn install_enrichment(&self, built: Enrichment, only_if_unsettled: bool) {
+        let mut slot = self.metadata.lock();
+        if only_if_unsettled && *self.enrichment_settled.borrow() {
+            return;
+        }
+        *slot = built;
+        self.enrichment_settled.send_replace(true);
+    }
+
+    /// The provider, once the launch-time build has settled. `None` when
+    /// enrichment is off or has no usable key.
+    async fn metadata_service(&self) -> Option<MetadataService> {
+        let mut settled = self.enrichment_settled.subscribe();
+        let _ = settled.wait_for(|settled| *settled).await;
+        self.metadata.lock().service.clone()
+    }
+
+    /// Why there is no provider, for the viewer who asked for one.
+    fn no_service_reason(&self) -> String {
+        let config = self.metadata_config();
+        if !config.enabled {
+            "turn on metadata enrichment first".into()
+        } else {
+            format!("{} needs an API key", config.provider.label())
+        }
+    }
+
    /// The enrichment settings as they stand.
    pub fn metadata_config(&self) -> MetadataConfig {
        self.metadata.lock().config.clone()
@@ -1774,7 +1835,7 @@ impl Engine {
                tracing::warn!("clear stored metadata: {error}");
            }

-            *engine.metadata.lock() = Enrichment::build(config.clone());
+            engine.install_enrichment(Enrichment::build(config.clone()), false);
            engine.emit(Event::MetadataConfig(config));
            engine.load_metadata();
        });
@@ -1788,7 +1849,7 @@ impl Engine {
                return engine.fail("store the API key", error);
            }
            let config = engine.metadata_config();
-            *engine.metadata.lock() = Enrichment::build(config);
+            engine.install_enrichment(Enrichment::build(config), false);
            engine.emit(Event::Status(if key.trim().is_empty() {
                format!("cleared the {} key", provider.label())
            } else {
@@ -1837,13 +1898,8 @@ impl Engine {
    }

    async fn run_match(&self, titles: Vec<Title>, force: bool) {
-        let Some(service) = self.metadata.lock().service.clone() else {
-            let config = self.metadata_config();
-            return self.emit(Event::Error(if !config.enabled {
-                "turn on metadata enrichment first".into()
-            } else {
-                format!("{} needs an API key", config.provider.label())
-            }));
+        let Some(service) = self.metadata_service().await else {
+            return self.emit(Event::Error(self.no_service_reason()));
        };
        let provider = service.provider();

@@ -1979,21 +2035,13 @@ impl Engine {
    /// Unscored and unfiltered — see [`MetadataService::search`]. Nothing is
    /// stored: this is a look, and only [`Engine::choose_match`] writes.
    pub fn search_matches(&self, title_key: String, term: String, kind: TitleKind) {
-        let Some(service) = self.metadata.lock().service.clone() else {
-            let config = self.metadata_config();
-            return self.emit(Event::MatchSearchFailed {
-                title_key,
-                error: if !config.enabled {
-                    "turn on metadata enrichment first".into()
-                } else {
-                    format!("{} needs an API key", config.provider.label())
-                },
-            });
-        };
-
        let engine = self.clone();
        let permits = Arc::clone(&self.lookups);
        self.runtime.spawn(async move {
+            let Some(service) = engine.metadata_service().await else {
+                let error = engine.no_service_reason();
+                return engine.emit(Event::MatchSearchFailed { title_key, error });
+            };
            // The same permit the batch run takes: a viewer typing in the search
            // box while a match run is going must not be what earns the 429.
            let Ok(_permit) = permits.acquire().await else {
@@ -2019,12 +2067,11 @@ impl Engine {
    /// to the next match run, because the point of choosing an entry by hand is
    /// usually that its episode names were wrong too.
    pub fn choose_match(&self, title: Title, found: pstr_core::metadata::TitleMetadata) {
-        let Some(service) = self.metadata.lock().service.clone() else {
-            return self.emit(Event::Error("turn on metadata enrichment first".into()));
-        };
-
        let engine = self.clone();
        self.runtime.spawn(async move {
+            let Some(service) = engine.metadata_service().await else {
+                return engine.emit(Event::Error(engine.no_service_reason()));
+            };
            let name = found.name.clone();
            let record = service.chosen(title.key.clone(), found.clone());
            if let Err(error) = engine.catalog.lock().set_metadata(&record) {
@@ -2103,7 +2150,7 @@ impl Engine {
                }
            }

-            let Some(service) = engine.metadata.lock().service.clone() else {
+            let Some(service) = engine.metadata_service().await else {
                // Enrichment was turned off between the request and now.
                return engine.emit(Event::PosterMissing { key: title_key });
            };
@@ -0,0 +1,350 @@
+//! One window at a time.
+//!
+//! A second launch hands what it was started with — a share link, or nothing
+//! — to the window already open, and exits. Without this, a second click on
+//! the launcher opened a second window on the same catalog: two engines
+//! writing the same watch state, two crawls of the same shares, and two films
+//! playing over each other.
+//!
+//! The channel between the two is a Unix socket in the user's runtime
+//! directory, or a named pipe on Windows. Anything that goes wrong setting it
+//! up is logged and the app runs on without it: a second window is a nuisance,
+//! and a launch that refuses to start because of this is a bug.
+
+use std::sync::mpsc::{Receiver, Sender, channel};
+
+use pstr_core::config::AppDirs;
+
+/// What a later launch asks of the window already open.
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub enum Request {
+    /// Come to the front.
+    Raise,
+    /// Come to the front, with this share link in the Add form.
+    AddShare(String),
+}
+
+impl Request {
+    /// What a launch was started with: the first argument that is a share
+    /// link, so `proton-stream 'https://drive.proton.me/urls/…#…'` adds it.
+    pub fn from_args(args: impl IntoIterator<Item = String>) -> Self {
+        args.into_iter()
+            .map(|arg| arg.trim().to_owned())
+            .find(|arg| pstr_core::shares::share_token(arg).is_ok())
+            .map_or(Self::Raise, Self::AddShare)
+    }
+
+    /// One line on the wire.
+    fn encode(&self) -> String {
+        match self {
+            Self::Raise => "raise\n".to_owned(),
+            Self::AddShare(url) => format!("add {url}\n"),
+        }
+    }
+
+    /// The other end of [`Request::encode`]. Anything else is ignored rather
+    /// than guessed at — and a link that is not a share link is not one to
+    /// put in the form.
+    fn decode(line: &str) -> Option<Self> {
+        let line = line.trim();
+        if line == "raise" {
+            return Some(Self::Raise);
+        }
+        let url = line.strip_prefix("add ")?.trim();
+        pstr_core::shares::share_token(url)
+            .is_ok()
+            .then(|| Self::AddShare(url.to_owned()))
+    }
+}
+
+/// How long a launch spends handing its request over before giving up on it.
+const HAND_TIMEOUT: std::time::Duration = std::time::Duration::from_secs(2);
+/// The most a request may be. A share link is a few hundred bytes.
+const MOST: u64 = 8 * 1024;
+
+/// The outcome of [`claim`].
+pub enum Claim {
+    /// This is the window. The listener answers later launches.
+    First(Listener),
+    /// A window was already open and has the request. This launch is done.
+    Handed,
+}
+
+/// Become the one window, or hand `request` to the one there is.
+pub fn claim(runtime: &tokio::runtime::Runtime, dirs: &AppDirs, request: &Request) -> Claim {
+    platform::claim(runtime, dirs, request)
+}
+
+/// Requests from later launches, until the process ends.
+pub struct Listener {
+    inner: Option<platform::Inner>,
+}
+
+impl Listener {
+    /// Start answering. `first` is this launch's own request, which arrives
+    /// through the same channel as the rest so there is one place to act on it.
+    pub fn serve(
+        self,
+        runtime: &tokio::runtime::Runtime,
+        ctx: &egui::Context,
+        first: Request,
+    ) -> Receiver<Request> {
+        let (sender, receiver) = channel();
+        if first != Request::Raise {
+            let _ = sender.send(first);
+        }
+        if let Some(inner) = self.inner {
+            platform::serve(
+                inner,
+                runtime,
+                Deliver {
+                    sender,
+                    ctx: ctx.clone(),
+                },
+            );
+        }
+        receiver
+    }
+}
+
+/// Where a received request goes: the app's queue, and a repaint so it is
+/// acted on now rather than when the pointer next moves.
+struct Deliver {
+    sender: Sender<Request>,
+    ctx: egui::Context,
+}
+
+impl Deliver {
+    fn line(&self, text: &str) {
+        let Some(request) = Request::decode(text) else {
+            tracing::debug!("instance: ignored a request that did not parse");
+            return;
+        };
+        let _ = self.sender.send(request);
+        self.ctx.request_repaint();
+    }
+}
+
+#[cfg(unix)]
+mod platform {
+    use std::io::{Read, Write};
+    use std::os::unix::fs::PermissionsExt;
+    use std::os::unix::net::{UnixListener, UnixStream};
+    use std::path::PathBuf;
+
+    use super::{AppDirs, Claim, Deliver, HAND_TIMEOUT, Listener, MOST, Request};
+
+    pub struct Inner(UnixListener);
+
+    /// In the runtime directory where there is one: it is the user's alone and
+    /// emptied at logout, which is exactly the life a socket should have.
+    fn socket(dirs: &AppDirs) -> PathBuf {
+        directories::BaseDirs::new()
+            .and_then(|base| base.runtime_dir().map(std::path::Path::to_path_buf))
+            .unwrap_or_else(|| dirs.cache.clone())
+            .join("io.narl.proton-stream.sock")
+    }
+
+    pub fn claim(_: &tokio::runtime::Runtime, dirs: &AppDirs, request: &Request) -> Claim {
+        let path = socket(dirs);
+        if let Ok(mut stream) = UnixStream::connect(&path) {
+            let _ = stream.set_write_timeout(Some(HAND_TIMEOUT));
+            match stream.write_all(request.encode().as_bytes()) {
+                Ok(()) => return Claim::Handed,
+                Err(error) => tracing::warn!("instance: hand over to the open window: {error}"),
+            }
+        }
+        // Nobody answered, so a socket file still there is left over from a
+        // window that did not exit cleanly.
+        let _ = std::fs::remove_file(&path);
+        let listener = match UnixListener::bind(&path) {
+            Ok(listener) => listener,
+            Err(error) => {
+                tracing::warn!("instance: listen at {}: {error}", path.display());
+                return Claim::First(Listener { inner: None });
+            }
+        };
+        // The runtime directory is private already; the cache fallback is
+        // not necessarily, and a share link is a secret.
+        let _ = std::fs::set_permissions(&path, std::fs::Permissions::from_mode(0o600));
+        Claim::First(Listener {
+            inner: Some(Inner(listener)),
+        })
+    }
+
+    pub fn serve(inner: Inner, _: &tokio::runtime::Runtime, deliver: Deliver) {
+        let spawned = std::thread::Builder::new()
+            .name("instance".into())
+            .spawn(move || {
+                for stream in inner.0.incoming() {
+                    let Ok(stream) = stream else { continue };
+                    let _ = stream.set_read_timeout(Some(HAND_TIMEOUT));
+                    let mut text = String::new();
+                    if stream.take(MOST).read_to_string(&mut text).is_ok() {
+                        deliver.line(&text);
+                    }
+                }
+            });
+        if let Err(error) = spawned {
+            tracing::warn!("instance thread: {error}");
+        }
+    }
+}
+
+#[cfg(windows)]
+mod platform {
+    use std::hash::{BuildHasher, Hasher};
+    use std::io::Write;
+
+    use tokio::io::AsyncReadExt;
+    use tokio::net::windows::named_pipe::{NamedPipeServer, ServerOptions};
+
+    use super::{AppDirs, Claim, Deliver, HAND_TIMEOUT, Listener, MOST, Request};
+
+    pub struct Inner {
+        name: String,
+        first: NamedPipeServer,
+    }
+
+    /// The pipe's name. Pipe names are machine-wide, so a fixed one could be
+    /// taken first by another account on the same machine, which would then
+    /// be handed this user's share links. The name carries a random part kept
+    /// in this user's own config directory, which nobody else can read.
+    fn pipe(dirs: &AppDirs) -> String {
+        let path = dirs.config.join("instance.key");
+        let key = std::fs::read_to_string(&path)
+            .ok()
+            .map(|key| key.trim().to_owned())
+            .filter(|key| key.len() == 32 && key.bytes().all(|b| b.is_ascii_hexdigit()))
+            .unwrap_or_else(|| {
+                // `RandomState` is seeded from the OS's random source, once
+                // per process and stepped per instance after that.
+                let mut key = String::new();
+                for _ in 0..2 {
+                    let word = std::collections::hash_map::RandomState::new()
+                        .build_hasher()
+                        .finish();
+                    key.push_str(&format!("{word:016x}"));
+                }
+                if let Err(error) = std::fs::write(&path, &key) {
+                    tracing::warn!("instance: store the pipe key: {error}");
+                }
+                key
+            });
+        format!(r"\\.\pipe\io.narl.proton-stream.{key}")
+    }
+
+    fn server(name: &str, first: bool) -> std::io::Result<NamedPipeServer> {
+        ServerOptions::new()
+            .first_pipe_instance(first)
+            .reject_remote_clients(true)
+            .access_outbound(false)
+            .create(name)
+    }
+
+    pub fn claim(runtime: &tokio::runtime::Runtime, dirs: &AppDirs, request: &Request) -> Claim {
+        let name = pipe(dirs);
+        // Registering a pipe with tokio needs its reactor.
+        let _entered = runtime.enter();
+        match server(&name, true) {
+            Ok(first) => Claim::First(Listener {
+                inner: Some(Inner { name, first }),
+            }),
+            // Taken: there is a window. Hand it the request.
+            Err(_) => {
+                let started = std::time::Instant::now();
+                loop {
+                    match std::fs::OpenOptions::new().write(true).open(&name) {
+                        Ok(mut pipe) => {
+                            if let Err(error) = pipe.write_all(request.encode().as_bytes()) {
+                                tracing::warn!("instance: hand over to the open window: {error}");
+                            }
+                            return Claim::Handed;
+                        }
+                        // Every instance busy with another launch: wait a turn.
+                        Err(_) if started.elapsed() < HAND_TIMEOUT => {
+                            std::thread::sleep(std::time::Duration::from_millis(50));
+                        }
+                        Err(error) => {
+                            tracing::warn!("instance: reach the open window: {error}");
+                            return Claim::First(Listener { inner: None });
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    pub fn serve(inner: Inner, runtime: &tokio::runtime::Runtime, deliver: Deliver) {
+        runtime.spawn(async move {
+            let Inner { name, mut first } = inner;
+            loop {
+                if first.connect().await.is_err() {
+                    continue;
+                }
+                let connected = first;
+                // The next instance is up before this one is read, so a launch
+                // right behind this one finds a pipe to connect to.
+                first = match server(&name, false) {
+                    Ok(next) => next,
+                    Err(error) => {
+                        tracing::warn!("instance: reopen the pipe: {error}");
+                        return;
+                    }
+                };
+                let mut text = String::new();
+                let mut limited = connected.take(MOST);
+                let read = limited.read_to_string(&mut text);
+                if let Ok(Ok(_)) = tokio::time::timeout(HAND_TIMEOUT, read).await {
+                    deliver.line(&text);
+                }
+            }
+        });
+    }
+}
+
+#[cfg(not(any(unix, windows)))]
+mod platform {
+    use super::{AppDirs, Claim, Deliver, Listener, Request};
+
+    pub struct Inner;
+
+    pub fn claim(_: &tokio::runtime::Runtime, _: &AppDirs, _: &Request) -> Claim {
+        Claim::First(Listener { inner: None })
+    }
+
+    pub fn serve(_: Inner, _: &tokio::runtime::Runtime, _: Deliver) {}
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    const LINK: &str = "https://drive.proton.me/urls/ABCDEFGHIJ#fragmentsecret";
+
+    #[test]
+    fn a_launch_with_a_share_link_asks_for_it_to_be_added() {
+        let args = ["--verbose".to_owned(), format!("  {LINK} ")];
+        assert_eq!(Request::from_args(args), Request::AddShare(LINK.to_owned()));
+    }
+
+    #[test]
+    fn a_launch_with_no_share_link_only_raises_the_window() {
+        let args = ["https://example.com/".to_owned()];
+        assert_eq!(Request::from_args(args), Request::Raise);
+        assert_eq!(Request::from_args(Vec::new()), Request::Raise);
+    }
+
+    #[test]
+    fn a_request_survives_the_wire() {
+        for request in [Request::Raise, Request::AddShare(LINK.to_owned())] {
+            assert_eq!(Request::decode(&request.encode()), Some(request));
+        }
+    }
+
+    #[test]
+    fn a_line_that_is_not_a_request_is_ignored() {
+        assert_eq!(Request::decode("add https://example.com/"), None);
+        assert_eq!(Request::decode("open the pod bay doors"), None);
+    }
+}
@@ -23,6 +23,7 @@ pub mod app;
 pub mod desktop_prefs;
 pub mod engine;
 pub mod inhibit;
+pub mod instance;
 pub mod media;
 pub mod notify;
 pub mod pacing;
@@ -31,9 +31,27 @@ fn main() -> anyhow::Result<()> {
    );
    let dirs = AppDirs::ensure().context("resolve app directories")?;

+    // Before the window: a second launch hands its request to the first and
+    // never opens one.
+    let request = pstr_app::instance::Request::from_args(std::env::args().skip(1));
+    let instance = match pstr_app::instance::claim(&runtime, &dirs, &request) {
+        pstr_app::instance::Claim::First(listener) => listener,
+        pstr_app::instance::Claim::Handed => {
+            tracing::info!("handed over to the window already open");
+            return Ok(());
+        }
+    };
+
    let window = pstr_app::window::WindowState::load(&dirs.window_file());
+    let mut viewport = egui::ViewportBuilder::default();
+    // X11 and Windows take the icon from the window. Wayland ignores this and
+    // looks the app id up in the installed desktop entry instead.
+    match eframe::icon_data::from_png_bytes(include_bytes!("../assets/icon-256.png")) {
+        Ok(icon) => viewport = viewport.with_icon(icon),
+        Err(error) => tracing::debug!("window icon: {error}"),
+    }
    let mut options = eframe::NativeOptions {
-        viewport: egui::ViewportBuilder::default()
+        viewport: viewport
            .with_title("proton-stream")
            .with_inner_size(window.map_or([1180.0, 780.0], |state| [state.width, state.height]))
            .with_maximized(window.is_some_and(|state| state.maximized))
@@ -50,7 +68,7 @@ fn main() -> anyhow::Result<()> {
        "proton-stream",
        options,
        Box::new(move |cc| {
-            pstr_app::app::App::new(cc, runtime, dirs)
+            pstr_app::app::App::new(cc, runtime, dirs, instance, request)
                .map(|app| Box::new(app) as Box<dyn eframe::App>)
                .map_err(|error| error.into())
        }),
@@ -4,41 +4,48 @@
 //! app already has the toast, and a second copy of it from the panel is noise.
 //! That rule is the caller's — see `App::notify`.
 //!
-//! Linux only, over `org.freedesktop.Notifications`. Windows wants an
-//! application id registered by an installer before a toast will show, and a
-//! notification that silently never appears is worse than none.
+//! Linux over `org.freedesktop.Notifications`; Windows as a toast. Nothing on
+//! macOS yet.
+//!
+//! A Windows toast is shown under an application id, and Windows drops a toast
+//! whose id it does not know without a word. The id is registered for the
+//! current user under `HKCU\Software\Classes\AppUserModelId` — the same
+//! registration the Windows App SDK makes for an app with no package — which
+//! works for the MSI and the portable zip alike. If that write fails, the
+//! toast goes out under PowerShell's id instead, which Windows always knows: a
+//! notification that names the wrong program beats one that never appears.
+
+use std::path::Path;

 /// Sends notifications from a thread of its own, so a notification daemon
 /// that is slow to answer never costs a frame.
 pub struct Notifier {
-    #[cfg(target_os = "linux")]
+    #[cfg(any(target_os = "linux", windows))]
    orders: Option<std::sync::mpsc::Sender<(String, String)>>,
 }

 impl Notifier {
-    pub fn new() -> Self {
+    /// `cache` is where Windows is pointed for the toast's icon.
+    pub fn new(cache: &Path) -> Self {
+        let _ = cache;
        Self {
            #[cfg(target_os = "linux")]
            orders: linux::spawn(),
+            #[cfg(windows)]
+            orders: windows::spawn(cache.join("notification-icon.png")),
        }
    }

    pub fn send(&self, summary: impl Into<String>, body: impl Into<String>) {
-        #[cfg(target_os = "linux")]
+        #[cfg(any(target_os = "linux", windows))]
        if let Some(orders) = &self.orders {
            let _ = orders.send((summary.into(), body.into()));
        }
-        #[cfg(not(target_os = "linux"))]
+        #[cfg(not(any(target_os = "linux", windows)))]
        let _ = (summary.into(), body.into());
    }
 }

-impl Default for Notifier {
-    fn default() -> Self {
-        Self::new()
-    }
-}
-
 #[cfg(target_os = "linux")]
 mod linux {
    use std::sync::mpsc::{Sender, channel};
@@ -93,3 +100,91 @@ mod linux {
        Some(orders)
    }
 }
+
+#[cfg(windows)]
+mod windows {
+    use std::path::{Path, PathBuf};
+    use std::sync::mpsc::{Sender, channel};
+
+    use tauri_winrt_notification::Toast;
+
+    /// The id toasts are shown under, and the key it is registered at.
+    const APP_ID: &str = "io.narl.proton-stream";
+    const ICON: &[u8] = include_bytes!("../assets/icon-256.png");
+
+    pub fn spawn(icon: PathBuf) -> Option<Sender<(String, String)>> {
+        let (orders, receiver) = channel::<(String, String)>();
+        std::thread::Builder::new()
+            .name("notify".into())
+            .spawn(move || {
+                // Registered on first use rather than at startup: most
+                // sessions never send one.
+                let mut app_id: Option<&str> = None;
+                for (summary, body) in receiver {
+                    let id = *app_id.get_or_insert_with(|| {
+                        let _ = std::fs::write(&icon, ICON);
+                        if register(&icon) {
+                            APP_ID
+                        } else {
+                            Toast::POWERSHELL_APP_ID
+                        }
+                    });
+                    let shown = Toast::new(id).title(&summary).text1(&body).show();
+                    if let Err(error) = shown {
+                        tracing::debug!("notification: {error}");
+                    }
+                }
+            })
+            .inspect_err(|error| tracing::debug!("notify thread: {error}"))
+            .ok()?;
+        Some(orders)
+    }
+
+    /// Tell Windows the app id's display name and icon. Per user, no rights
+    /// needed, and written again every session so a moved install points at
+    /// a live icon.
+    fn register(icon: &Path) -> bool {
+        use windows_sys::Win32::System::Registry::{
+            HKEY, HKEY_CURRENT_USER, KEY_WRITE, REG_OPTION_NON_VOLATILE, REG_SZ, RegCloseKey,
+            RegCreateKeyExW, RegSetValueExW,
+        };
+
+        fn wide(text: &str) -> Vec<u16> {
+            text.encode_utf16().chain(std::iter::once(0)).collect()
+        }
+
+        let path = wide(&format!(r"Software\Classes\AppUserModelId\{APP_ID}"));
+        let mut key: HKEY = std::ptr::null_mut();
+        // SAFETY: every pointer is to a live, NUL-terminated buffer or an out
+        // parameter on this stack frame, and the key is closed before return.
+        unsafe {
+            let created = RegCreateKeyExW(
+                HKEY_CURRENT_USER,
+                path.as_ptr(),
+                0,
+                std::ptr::null(),
+                REG_OPTION_NON_VOLATILE,
+                KEY_WRITE,
+                std::ptr::null(),
+                &mut key,
+                std::ptr::null_mut(),
+            );
+            if created != 0 {
+                tracing::debug!("register the notification id: error {created}");
+                return false;
+            }
+            let icon = icon.to_string_lossy();
+            let mut written = true;
+            for (name, value) in [("DisplayName", "Proton Stream"), ("IconUri", icon.as_ref())] {
+                let name = wide(name);
+                let value = wide(value);
+                let bytes = u32::try_from(value.len() * 2).unwrap_or(u32::MAX);
+                let set =
+                    RegSetValueExW(key, name.as_ptr(), 0, REG_SZ, value.as_ptr().cast(), bytes);
+                written &= set == 0;
+            }
+            RegCloseKey(key);
+            written
+        }
+    }
+}
@@ -84,26 +84,151 @@ impl Role {
        }
    }

+    /// Headings are set in the semibold cut; everything below them in the
+    /// regular one.
+    pub fn family(self) -> egui::FontFamily {
+        match self {
+            Self::Display | Self::Title | Self::Heading | Self::Section => semibold(),
+            _ => egui::FontFamily::Proportional,
+        }
+    }
+
    /// For the hand-painted parts, which lay text out through a `Painter` and
    /// never see a `RichText`.
    pub fn font(self) -> egui::FontId {
-        egui::FontId::proportional(self.size())
+        egui::FontId::new(self.size(), self.family())
    }

    /// For the parts that go through egui's widgets.
    pub fn rich(self, text: impl Into<String>) -> egui::RichText {
-        egui::RichText::new(text).size(self.size())
+        egui::RichText::new(text)
+            .size(self.size())
+            .family(self.family())
    }
 }

-/// Install a real CJK fallback before the default egui fonts.  egui ships a
-/// compact Latin font, but it intentionally does not bundle the multi-megabyte
-/// CJK families.  Native desktops already provide one, so use it when present.
+/// The spacing scale. Gaps between things come from here rather than being
+/// picked per call site, so two neighbouring groups are 12 apart or 16 apart
+/// and never 14 in one place and 15 in the next.
+pub mod space {
+    /// Between lines that belong to one thing: a title and its caption.
+    pub const XXS: f32 = 2.0;
+    pub const XS: f32 = 4.0;
+    /// Between controls in one cluster.
+    pub const S: f32 = 6.0;
+    pub const M: f32 = 8.0;
+    /// Between clusters on one row, and between rows of a form.
+    pub const L: f32 = 12.0;
+    /// Between the groups on a page.
+    pub const XL: f32 = 16.0;
+    /// Between sections.
+    pub const XXL: f32 = 24.0;
+}
+
+/// Corner radii, as `egui::CornerRadius::same` takes them.
+pub mod radius {
+    /// A progress bar, or a strip along an edge.
+    pub const BAR: u8 = 3;
+    /// A badge over artwork. Android's `Shape.kt` has the same number.
+    pub const BADGE: u8 = 4;
+    /// A small control inside something else: a menu entry, a chip.
+    pub const SM: u8 = 6;
+    /// Everything else either client paints: cards, buttons, the tab pill.
+    pub const MD: u8 = 8;
+    /// Something that floats: a row card, a dialog, a toast, the hero.
+    pub const LG: u8 = 12;
+}
+
+/// How long things take to change, in seconds, for `Context::animate_*`.
+pub mod motion {
+    /// A press, which has to answer before the finger is off the button.
+    pub const PRESS: f32 = 0.05;
+    /// A hover arriving and leaving.
+    pub const HOVER: f32 = 0.12;
+    /// A control changing state: a switch flipping, the tab pill travelling,
+    /// one page giving way to the next.
+    pub const STATE: f32 = 0.15;
+    /// Chrome fading in and out: the player's controls, a toast.
+    pub const FADE: f32 = 0.18;
+    /// Artwork arriving over its placeholder. Slower, because it replaces
+    /// something rather than adding to it, and a fast swap reads as a flicker.
+    pub const ARRIVE: f32 = 0.24;
+
+    /// Fast out, slow in: the curve every hand-driven transition uses.
+    pub fn ease_out(t: f32) -> f32 {
+        1.0 - (1.0 - t.clamp(0.0, 1.0)).powi(3)
+    }
+}
+
+/// The UI typeface, bundled rather than taken from the system so a title
+/// sets the same on every desktop. Inter, under the OFL — the licence is
+/// beside the files.
 ///
-/// On a thread of its own: `fc-match` and reading a font file of tens of
-/// megabytes held the first frame back by a visible moment, and every name
-/// that needs the fallback is still loading from the catalog by then anyway.
-pub fn install_font_fallbacks(ctx: &egui::Context) {
+/// Both files have their private use area mappings removed, because the
+/// Phosphor icons live there. Inter maps 745 codepoints in that area to its
+/// own alternate glyphs, and as the first font in the family it won: the
+/// refresh arrow drew as an accented letter. The glyphs themselves are still
+/// in the files; only the character map entries are gone. Strip them again
+/// after any Inter update (fontTools: drop every `cmap` subtable entry in
+/// U+E000..=U+F8FF).
+const INTER: &[u8] = include_bytes!("../assets/fonts/Inter-Regular.ttf");
+const INTER_SEMIBOLD: &[u8] = include_bytes!("../assets/fonts/Inter-SemiBold.ttf");
+
+/// The family the headings are set in. egui has no notion of weight, so the
+/// semibold cut is a family of its own.
+pub fn semibold() -> egui::FontFamily {
+    egui::FontFamily::Name("semibold".into())
+}
+
+/// Inter, the icon font, and egui's own fonts behind them for the emoji and
+/// symbols Inter does not carry. `cjk` goes last, when there is one.
+fn font_definitions(cjk: Option<egui::FontData>) -> egui::FontDefinitions {
+    use egui::FontFamily::{Monospace, Proportional};
+
+    let mut fonts = egui::FontDefinitions::default();
+    fonts
+        .font_data
+        .insert("inter".into(), Arc::new(egui::FontData::from_static(INTER)));
+    fonts.font_data.insert(
+        "inter-semibold".into(),
+        Arc::new(egui::FontData::from_static(INTER_SEMIBOLD)),
+    );
+    fonts
+        .families
+        .entry(Proportional)
+        .or_default()
+        .insert(0, "inter".into());
+    // Right behind Inter. The icons are in the private use area, which the
+    // bundled Inter no longer maps, so neither font shadows the other.
+    egui_phosphor::add_to_fonts(&mut fonts, egui_phosphor::Variant::Regular);
+    if let Some(cjk) = cjk {
+        let name = "system-cjk-fallback".to_owned();
+        fonts.font_data.insert(name.clone(), Arc::new(cjk));
+        for family in [Proportional, Monospace] {
+            fonts.families.entry(family).or_default().push(name.clone());
+        }
+    }
+    let fallbacks = fonts.families[&Proportional]
+        .iter()
+        .filter(|name| *name != "inter")
+        .cloned();
+    let semibold_chain = std::iter::once("inter-semibold".to_owned())
+        .chain(fallbacks)
+        .collect();
+    fonts.families.insert(semibold(), semibold_chain);
+    fonts
+}
+
+/// Install the bundled fonts now, and a CJK fallback when the system has one.
+///
+/// The bundled ones are compiled in and cost nothing to hand over. The CJK
+/// fallback is on a thread of its own: `fc-match` and reading a font file of
+/// tens of megabytes held the first frame back by a visible moment, and every
+/// name that needs the fallback is still loading from the catalog by then
+/// anyway. egui deliberately does not bundle the multi-megabyte CJK families,
+/// and native desktops already provide one.
+pub fn install_fonts(ctx: &egui::Context) {
+    ctx.set_fonts(font_definitions(None));
    let ctx = ctx.clone();
    let spawned = std::thread::Builder::new()
        .name("fonts".into())
@@ -120,16 +245,9 @@ fn install_cjk_fallback(ctx: &egui::Context) {
    let Ok(bytes) = std::fs::read(path) else {
        return;
    };
-
-    let mut fonts = egui::FontDefinitions::default();
    let mut data = egui::FontData::from_owned(bytes);
    data.index = index;
-    let name = "system-cjk-fallback".to_owned();
-    fonts.font_data.insert(name.clone(), Arc::new(data));
-    for family in [egui::FontFamily::Proportional, egui::FontFamily::Monospace] {
-        fonts.families.entry(family).or_default().push(name.clone());
-    }
-    ctx.set_fonts(fonts);
+    ctx.set_fonts(font_definitions(Some(data)));
    ctx.request_repaint();
 }

@@ -569,7 +687,7 @@ pub fn apply(ctx: &egui::Context, appearance: Appearance) {
    visuals.selection.stroke = Stroke::new(1.0, palette.text);
    visuals.hyperlink_color = palette.accent;

-    let radius = CornerRadius::same(8);
+    let radius = CornerRadius::same(radius::MD);
    visuals.widgets.noninteractive.bg_fill = palette.surface;
    visuals.widgets.noninteractive.corner_radius = radius;
    visuals.widgets.noninteractive.bg_stroke = Stroke::new(1.0, palette.border);
@@ -731,6 +849,27 @@ const RAMP_STOPS: usize = 64;
 mod tests {
    use super::*;

+    #[test]
+    fn the_bundled_inter_leaves_the_icon_codepoints_to_phosphor() {
+        use skrifa::MetadataProvider as _;
+
+        for (name, bytes) in [("regular", INTER), ("semibold", INTER_SEMIBOLD)] {
+            let font = skrifa::FontRef::new(bytes).expect("bundled Inter parses");
+            let shadowed: Vec<u32> = font
+                .charmap()
+                .mappings()
+                .map(|(codepoint, _)| codepoint)
+                .filter(|codepoint| (0xE000..=0xF8FF).contains(codepoint))
+                .collect();
+            assert!(
+                shadowed.is_empty(),
+                "Inter {name} maps {} private use codepoints, starting U+{:04X}",
+                shadowed.len(),
+                shadowed[0]
+            );
+        }
+    }
+
    #[test]
    fn the_shipped_default_is_the_palette_that_was_here_before() {
        let resolved = Palette::resolve(Appearance::default());
@@ -20,7 +20,7 @@ pub fn show(ui: &mut egui::Ui, downloads: &[DownloadItem], actions: &mut Vec<Act
        .show(ui, |ui| {
            ui.set_max_width(960.0);
            summary(ui, downloads);
-            ui.add_space(12.0);
+            ui.add_space(theme::space::L);

            let mut start = 0;
            while start < downloads.len() {
@@ -30,7 +30,7 @@ pub fn show(ui: &mut egui::Ui, downloads: &[DownloadItem], actions: &mut Vec<Act
                    .position(|item| item.target.title_key != *title_key)
                    .map_or(downloads.len(), |offset| start + offset);
                group(ui, &downloads[start..end], actions);
-                ui.add_space(14.0);
+                ui.add_space(theme::space::L);
                start = end;
            }
        });
@@ -108,7 +108,7 @@ fn group(ui: &mut egui::Ui, group: &[DownloadItem], actions: &mut Vec<Action>) {
    if totals_known && group.len() > 1 {
        ui::progress_bar(ui, fraction(downloaded, total), ui.available_width());
    }
-    ui.add_space(6.0);
+    ui.add_space(theme::space::S);
    for item in group {
        row(ui, item, actions);
    }
@@ -117,7 +117,7 @@ fn group(ui: &mut egui::Ui, group: &[DownloadItem], actions: &mut Vec<Action>) {
 fn row(ui: &mut egui::Ui, item: &DownloadItem, actions: &mut Vec<Action>) {
    egui::Frame::new()
        .fill(theme::card())
-        .corner_radius(egui::CornerRadius::same(6))
+        .corner_radius(egui::CornerRadius::same(theme::radius::SM))
        .inner_margin(egui::Margin::symmetric(12, 8))
        .show(ui, |ui| {
            ui.set_width(ui.available_width());
@@ -142,7 +142,7 @@ fn row(ui: &mut egui::Ui, item: &DownloadItem, actions: &mut Vec<Action>) {
                ui.with_layout(egui::Layout::right_to_left(egui::Align::Center), |ui| {
                    buttons(ui, item, actions);
                    if item.total > 0 && item.state != DownloadState::Completed {
-                        ui.add_space(8.0);
+                        ui.add_space(theme::space::M);
                        ui.label(ui::muted(format!(
                            "{} / {}",
                            size(item.downloaded),
@@ -154,7 +154,7 @@ fn row(ui: &mut egui::Ui, item: &DownloadItem, actions: &mut Vec<Action>) {
                });
            });
        });
-    ui.add_space(4.0);
+    ui.add_space(theme::space::XS);
 }

 /// What a row says about itself, and in what colour.
@@ -0,0 +1,238 @@
+//! Everything that has been played, newest first, under a heading per day.
+//!
+//! Continue watching answers "what was I in the middle of"; this answers
+//! "what was that episode on Tuesday". It is read straight off the watch
+//! state, so there is nothing to keep in step: an episode is here because it
+//! has a position or is marked watched, and leaves when it has neither.
+
+use chrono::{DateTime, Local, NaiveDate, TimeZone};
+use pstr_core::library::{Episode, Library, Title, TitleKind};
+
+use crate::app::{Action, Page};
+use crate::theme;
+use crate::ui::{self, Art};
+
+const STILL: egui::Vec2 = egui::vec2(128.0, 72.0);
+/// How far back the page goes. Further than anyone scrolls; the cap is there
+/// so a library with years of history does not lay out every row of it.
+const MOST: usize = 400;
+
+/// Where one entry lives in [`Library::titles`]: title, season, episode.
+pub type Entry = (usize, usize, usize);
+
+/// The entries of `library.history()`, as positions, so they can be kept
+/// between frames and only rebuilt when the library changes.
+pub fn entries(library: &Library) -> Vec<Entry> {
+    let mut position = std::collections::HashMap::new();
+    for (t, title) in library.titles.iter().enumerate() {
+        for (s, season) in title.seasons.iter().enumerate() {
+            for (e, episode) in season.episodes.iter().enumerate() {
+                position.insert(std::ptr::from_ref(episode), (t, s, e));
+            }
+        }
+    }
+    library
+        .history()
+        .into_iter()
+        .filter_map(|(_, episode)| position.get(&std::ptr::from_ref(episode)).copied())
+        .collect()
+}
+
+pub fn show(
+    ui: &mut egui::Ui,
+    art: &mut Art<'_>,
+    library: &Library,
+    entries: &[Entry],
+    actions: &mut Vec<Action>,
+) {
+    if entries.is_empty() {
+        ui::empty_state(
+            ui,
+            "Nothing watched yet",
+            "Episodes and films you play show up here, newest first, so the one from \
+             last week is easy to find again.",
+        );
+        return;
+    }
+
+    let today = Local::now().date_naive();
+    egui::ScrollArea::vertical()
+        .auto_shrink([false, false])
+        .show(ui, |ui| {
+            ui.set_max_width(960.0);
+            let mut day = None;
+            for &(t, s, e) in entries.iter().take(MOST) {
+                let Some(title) = library.titles.get(t) else {
+                    continue;
+                };
+                let Some(episode) = title
+                    .seasons
+                    .get(s)
+                    .and_then(|season| season.episodes.get(e))
+                else {
+                    continue;
+                };
+                let Some(at) = Local.timestamp_opt(episode.last_played(), 0).single() else {
+                    continue;
+                };
+                if day != Some(at.date_naive()) {
+                    if day.is_some() {
+                        ui.add_space(theme::space::L);
+                    }
+                    day = Some(at.date_naive());
+                    ui::section(ui, &day_label(at.date_naive(), today));
+                }
+                row(ui, art, title, episode, at, actions);
+            }
+        });
+}
+
+fn row(
+    ui: &mut egui::Ui,
+    art: &mut Art<'_>,
+    title: &Title,
+    episode: &Episode,
+    at: DateTime<Local>,
+    actions: &mut Vec<Action>,
+) {
+    let row_id = ui.id().with(("history", &episode.node.link_id));
+    let frame = egui::Frame::new()
+        .corner_radius(egui::CornerRadius::same(theme::radius::LG))
+        .inner_margin(egui::Margin::same(8));
+    let mut prepared = frame.begin(ui);
+    {
+        let ui = &mut prepared.content_ui;
+        ui.set_width(ui.available_width());
+        ui.horizontal_top(|ui| {
+            ui::title::still(
+                ui,
+                art,
+                title,
+                episode,
+                episode.is_watched(),
+                STILL,
+                actions,
+            );
+            ui.add_space(theme::space::M);
+
+            let remove = 40.0;
+            let text_width = (ui.available_width() - remove).max(120.0);
+            ui.vertical(|ui| {
+                ui.set_width(text_width);
+                ui.spacing_mut().item_spacing.y = theme::space::XXS;
+                ui.add_space(theme::space::XS);
+                let name = ui
+                    .add(
+                        egui::Label::new(theme::Role::Body.rich(&title.name).color(theme::text()))
+                            .sense(egui::Sense::click())
+                            .truncate(),
+                    )
+                    .on_hover_cursor(egui::CursorIcon::PointingHand)
+                    .on_hover_text("Show this title");
+                if name.clicked() {
+                    actions.push(Action::Goto(Page::Title(title.key.clone())));
+                }
+                // A film's only "episode" is its file, and its filename says
+                // nothing the title above it does not.
+                if title.kind != TitleKind::Film {
+                    let episode_name = art
+                        .episode(&title.key, episode)
+                        .and_then(|found| found.name.clone())
+                        .unwrap_or_else(|| episode.detail().to_owned());
+                    let line = match episode.numbering() {
+                        Some(numbering) => format!("{numbering}  ·  {episode_name}"),
+                        None => episode_name,
+                    };
+                    ui.add(egui::Label::new(ui::muted(line)).truncate())
+                        .on_hover_text(&episode.node.name);
+                }
+                ui.label(ui::muted(status(episode, at)));
+            });
+
+            let cluster = egui::vec2(ui.available_width(), STILL.y);
+            let layout = egui::Layout::right_to_left(egui::Align::Center);
+            ui.allocate_ui_with_layout(cluster, layout, |ui| {
+                let remove = ui
+                    .add(
+                        egui::Button::new(
+                            theme::Role::Subhead
+                                .rich(egui_phosphor::regular::X)
+                                .color(theme::muted()),
+                        )
+                        .frame(false),
+                    )
+                    .on_hover_text(if episode.is_watched() {
+                        "Remove from history — marks it unwatched"
+                    } else {
+                        "Remove from history — forgets where you stopped"
+                    });
+                if remove.clicked() {
+                    actions.push(Action::RemoveFromHistory {
+                        share_id: episode.node.share_id.clone(),
+                        link_id: episode.node.link_id.clone(),
+                    });
+                }
+            });
+        });
+    }
+    let response = prepared.allocate_space(ui);
+    let lit =
+        ui.ctx()
+            .animate_bool_with_time(row_id, response.contains_pointer(), theme::motion::HOVER);
+    prepared.frame.fill = theme::card().gamma_multiply(0.35 + 0.65 * lit);
+    prepared.paint(ui);
+    ui.add_space(theme::space::XXS);
+}
+
+/// The grey line under the names: how far it got, and when.
+fn status(episode: &Episode, at: DateTime<Local>) -> String {
+    let when = at.format("%H:%M");
+    if episode.is_watched() {
+        return format!("Watched  ·  {when}");
+    }
+    match (
+        episode.resume_at(),
+        episode.watch.and_then(|watch| watch.duration_secs),
+    ) {
+        (Some(position), Some(duration)) => format!(
+            "Stopped at {} of {}  ·  {when}",
+            ui::format_time(position),
+            ui::format_time(duration)
+        ),
+        (Some(position), None) => format!("Stopped at {}  ·  {when}", ui::format_time(position)),
+        _ => format!("Played  ·  {when}"),
+    }
+}
+
+/// The heading over a day's entries: "Today", "Yesterday", a weekday within
+/// the last week, and a date before that — with the year only when it is not
+/// this one.
+fn day_label(day: NaiveDate, today: NaiveDate) -> String {
+    use chrono::Datelike;
+    match (today - day).num_days() {
+        0 => "Today".into(),
+        1 => "Yesterday".into(),
+        2..=6 => day.format("%A").to_string(),
+        _ if day.year() == today.year() => day.format("%-d %B").to_string(),
+        _ => day.format("%-d %B %Y").to_string(),
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    fn date(year: i32, month: u32, day: u32) -> NaiveDate {
+        NaiveDate::from_ymd_opt(year, month, day).unwrap()
+    }
+
+    #[test]
+    fn a_day_is_named_relative_to_today_for_the_last_week_and_dated_before_that() {
+        let today = date(2026, 10, 2);
+        assert_eq!(day_label(today, today), "Today");
+        assert_eq!(day_label(date(2026, 10, 1), today), "Yesterday");
+        assert_eq!(day_label(date(2026, 9, 28), today), "Monday");
+        assert_eq!(day_label(date(2026, 9, 25), today), "25 September");
+        assert_eq!(day_label(date(2025, 12, 24), today), "24 December 2025");
+    }
+}
@@ -47,13 +47,13 @@ pub fn show(ui: &mut egui::Ui, art: &mut Art<'_>, shelves: Shelves<'_>, actions:
            if !searching {
                if let Some(title) = featured(library, view, art.metadata, today()) {
                    hero(ui, art, title, actions);
-                    ui.add_space(18.0);
+                    ui.add_space(theme::space::XL);
                }
                let resumable = pick(&view.resumable);
                if !resumable.is_empty() {
                    ui::section(ui, "Continue watching");
                    continue_row(ui, art, &resumable, actions);
-                    ui.add_space(16.0);
+                    ui.add_space(theme::space::XL);
                }
            }

@@ -74,10 +74,10 @@ pub fn show(ui: &mut egui::Ui, art: &mut Art<'_>, shelves: Shelves<'_>, actions:
                    shelf_controls(ui, view, actions);
                });
            });
-            ui.add_space(6.0);
+            ui.add_space(theme::space::S);

            if matches.is_empty() {
-                ui.add_space(8.0);
+                ui.add_space(theme::space::M);
                ui.label(ui::muted(if searching {
                    "Nothing here by that name."
                } else {
@@ -143,7 +143,7 @@ fn hero(ui: &mut egui::Ui, art: &mut Art<'_>, title: &Title, actions: &mut Vec<A
    if !ui.is_rect_visible(rect) {
        return;
    }
-    let radius = egui::CornerRadius::same(12);
+    let radius = egui::CornerRadius::same(theme::radius::LG);
    let picture = art.of(title);
    let found = art
        .metadata
@@ -152,9 +152,11 @@ fn hero(ui: &mut egui::Ui, art: &mut Art<'_>, title: &Title, actions: &mut Vec<A

    let painter = ui.painter().with_clip_rect(rect);
    painter.rect_filled(rect, radius, theme::card());
-    let art_in = ui
-        .ctx()
-        .animate_bool_with_time(response.id.with("art"), picture.is_some(), 0.3);
+    let art_in = ui.ctx().animate_bool_with_time(
+        response.id.with("art"),
+        picture.is_some(),
+        theme::motion::ARRIVE,
+    );
    if art_in < 1.0 {
        ui::placeholder(&painter, rect, "", 1.0 - art_in);
    }
@@ -211,20 +213,22 @@ fn hero(ui: &mut egui::Ui, art: &mut Art<'_>, title: &Title, actions: &mut Vec<A
            ui.horizontal(|ui| {
                if let Some(episode) = title.next_up() {
                    let label = match (title.resume(), episode.numbering()) {
-                        (Some(_), Some(numbering)) => format!("▶  Resume {numbering}"),
-                        (Some(_), None) => "▶  Resume".to_owned(),
-                        (None, _) => "▶  Play".to_owned(),
+                        (Some(_), Some(numbering)) => {
+                            format!("{}  Resume {numbering}", egui_phosphor::regular::PLAY)
+                        }
+                        (Some(_), None) => format!("{}  Resume", egui_phosphor::regular::PLAY),
+                        (None, _) => format!("{}  Play", egui_phosphor::regular::PLAY),
                    };
                    if ui::accent_button(ui, &label).clicked() {
                        actions.push(Action::Play(PlaybackTarget::new(title, episode)));
                    }
-                    ui.add_space(6.0);
+                    ui.add_space(theme::space::S);
                }
                if ui.button("More info").clicked() {
                    actions.push(Action::Goto(Page::Title(title.key.clone())));
                }
            });
-            ui.add_space(14.0);
+            ui.add_space(theme::space::L);
            if let Some(overview) = found.as_ref().and_then(|found| found.overview.as_deref()) {
                let mut job = egui::text::LayoutJob::simple(
                    overview.to_owned(),
@@ -234,17 +238,17 @@ fn hero(ui: &mut egui::Ui, art: &mut Art<'_>, title: &Title, actions: &mut Vec<A
                );
                job.wrap.max_rows = 3;
                ui.label(job);
-                ui.add_space(8.0);
+                ui.add_space(theme::space::M);
            }
            let mut facts = vec![subtitle(title)];
            if let Some(found) = &found {
                if let Some(rating) = found.rating {
-                    facts.push(format!("★ {rating:.1}"));
+                    facts.push(format!("{} {rating:.1}", egui_phosphor::regular::STAR));
                }
                facts.extend(found.genres.iter().take(3).cloned());
            }
            ui.label(ui::muted(facts.join("  ·  ")));
-            ui.add_space(2.0);
+            ui.add_space(theme::space::XXS);
            ui.add(
                egui::Label::new(
                    theme::Role::Display
@@ -288,7 +292,7 @@ fn shelf_controls(ui: &mut egui::Ui, view: &LibraryView, actions: &mut Vec<Actio
    if let Some(Some(sort)) = sort.inner {
        actions.push(Action::SetShelf(view.filter, sort));
    }
-    ui.add_space(10.0);
+    ui.add_space(theme::space::L);
    if let Some(filter) = ui::widgets::segmented(
        ui,
        view.filter,
@@ -525,8 +529,11 @@ fn placeholder(ui: &mut egui::Ui) {
                    rect.min,
                    egui::vec2(grid.width, (grid.width * theme::CARD_ASPECT).round()),
                );
-                ui.painter()
-                    .rect_filled(image, egui::CornerRadius::same(8), theme::card());
+                ui.painter().rect_filled(
+                    image,
+                    egui::CornerRadius::same(theme::radius::MD),
+                    theme::card(),
+                );
            }
        });
        ui.add_space(theme::CARD_GAP);
@@ -541,11 +548,11 @@ fn empty_state(ui: &mut egui::Ui, actions: &mut Vec<Action>) {
                .rich("Nothing in the library yet")
                .strong(),
        );
-        ui.add_space(6.0);
+        ui.add_space(theme::space::S);
        ui.label(ui::muted(
            "Add a Proton Drive share link, and everything playable behind it shows up here.",
        ));
-        ui.add_space(18.0);
+        ui.add_space(theme::space::XL);
        if ui::accent_button(ui, "Add a share").clicked() {
            actions.push(Action::Goto(Page::Shares));
        }
@@ -43,7 +43,7 @@ pub fn show(
            egui::Frame::new()
                .fill(theme::surface())
                .inner_margin(egui::Margin::same(18))
-                .corner_radius(egui::CornerRadius::same(10)),
+                .corner_radius(egui::CornerRadius::same(theme::radius::LG)),
        )
        .show(ctx, |ui| {
            ui.set_width(620.0);
@@ -58,21 +58,21 @@ pub fn show(
                "Everything {} answers with, in its own order — nothing is scored here.",
                provider.label()
            )));
-            ui.add_space(10.0);
+            ui.add_space(theme::space::L);

            search_row(ui, matcher, actions);
-            ui.add_space(6.0);
+            ui.add_space(theme::space::S);
            current_row(ui, matcher, current.as_ref(), actions);
-            ui.add_space(10.0);
+            ui.add_space(theme::space::L);

            if let Some(error) = &matcher.error {
                ui.label(theme::Role::Caption.rich(error).color(theme::danger()));
-                ui.add_space(6.0);
+                ui.add_space(theme::space::S);
            }

            results(ui, matcher, art, actions);

-            ui.add_space(12.0);
+            ui.add_space(theme::space::L);
            ui.horizontal(|ui| {
                ui.with_layout(egui::Layout::right_to_left(egui::Align::Center), |ui| {
                    if ui.button("Close").clicked() {
@@ -178,7 +178,7 @@ fn results(ui: &mut egui::Ui, matcher: &Matcher, art: &mut Art<'_>, actions: &mu
                if row(ui, art, found).clicked() {
                    actions.push(Action::ChooseMatch(Box::new(found.clone())));
                }
-                ui.add_space(4.0);
+                ui.add_space(theme::space::XS);
            }
        });
 }
@@ -188,7 +188,7 @@ fn results(ui: &mut egui::Ui, matcher: &Matcher, art: &mut Art<'_>, actions: &mu
 fn row(ui: &mut egui::Ui, art: &mut Art<'_>, found: &TitleMetadata) -> egui::Response {
    let response = egui::Frame::new()
        .fill(theme::card())
-        .corner_radius(egui::CornerRadius::same(6))
+        .corner_radius(egui::CornerRadius::same(theme::radius::SM))
        .inner_margin(egui::Margin::same(8))
        .show(ui, |ui| {
            ui.set_width(ui.available_width());
@@ -204,12 +204,12 @@ fn row(ui: &mut egui::Ui, art: &mut Art<'_>, found: &TitleMetadata) -> egui::Res
                } else {
                    ui.painter().rect_filled(
                        rect,
-                        egui::CornerRadius::same(4),
+                        egui::CornerRadius::same(theme::radius::BADGE),
                        theme::card_hover(),
                    );
                }

-                ui.add_space(10.0);
+                ui.add_space(theme::space::L);
                ui.vertical(|ui| {
                    ui.label(
                        theme::Role::Body
@@ -241,7 +241,7 @@ fn row(ui: &mut egui::Ui, art: &mut Art<'_>, found: &TitleMetadata) -> egui::Res
    if response.hovered() {
        ui.painter().rect_stroke(
            response.rect,
-            egui::CornerRadius::same(6),
+            egui::CornerRadius::same(theme::radius::SM),
            egui::Stroke::new(1.5, theme::accent()),
            egui::StrokeKind::Inside,
        );
@@ -279,7 +279,7 @@ fn facts(found: &TitleMetadata) -> String {
        parts.push(ui::library::plural(episodes as usize, "episode"));
    }
    if let Some(rating) = found.rating {
-        parts.push(format!("★ {rating:.1}"));
+        parts.push(format!("{} {rating:.1}", egui_phosphor::regular::STAR));
    }
    parts.join("  ·  ")
 }
@@ -4,6 +4,7 @@
 //! applies them after the frame is drawn.

 pub mod downloads;
+pub mod history;
 pub mod library;
 pub mod matcher;
 pub mod player;
@@ -141,14 +142,14 @@ pub fn format_size(bytes: i64) -> String {

 /// A section title with a rule under it.
 pub fn section(ui: &mut egui::Ui, text: &str) {
-    ui.add_space(6.0);
+    ui.add_space(theme::space::S);
    ui.label(
        theme::Role::Section
            .rich(text)
            .strong()
            .color(theme::text()),
    );
-    ui.add_space(2.0);
+    ui.add_space(theme::space::XXS);
 }

 /// Small grey text, for everything that is context rather than content.
@@ -173,7 +174,7 @@ pub fn search_field(ui: &mut egui::Ui, search: &mut String, focus: bool) {
    let has_focus = ui.memory(|memory| memory.has_focus(id));
    let lit = ui
        .ctx()
-        .animate_bool_with_time(id.with("lit"), has_focus, 0.12);
+        .animate_bool_with_time(id.with("lit"), has_focus, theme::motion::HOVER);

    let radius = CornerRadius::same((height / 2.0) as u8);
    ui.painter().rect_filled(outer, radius, theme::card());
@@ -258,7 +259,7 @@ pub fn search_field(ui: &mut egui::Ui, search: &mut String, focus: bool) {
 pub fn progress_bar(ui: &mut egui::Ui, fraction: f32, width: f32) -> egui::Response {
    let (rect, response) = ui.allocate_exact_size(Vec2::new(width, 6.0), Sense::hover());
    if ui.is_rect_visible(rect) {
-        let radius = CornerRadius::same(3);
+        let radius = CornerRadius::same(theme::radius::BAR);
        ui.painter().rect_filled(rect, radius, theme::card_hover());
        let mut done = rect;
        done.set_width(rect.width() * fraction.clamp(0.0, 1.0));
@@ -275,7 +276,7 @@ pub fn empty_state(ui: &mut egui::Ui, heading: &str, body: &str) {
    ui.vertical_centered(|ui| {
        ui.add_space(96.0);
        ui.label(theme::Role::Title.rich(heading).strong());
-        ui.add_space(6.0);
+        ui.add_space(theme::space::S);
        ui.label(muted(body));
    });
 }
@@ -311,7 +312,7 @@ pub fn confirm(ctx: &egui::Context, id: &str, heading: &str, body: &str, verb: &
            egui::Frame::new()
                .fill(theme::surface())
                .inner_margin(egui::Margin::same(18))
-                .corner_radius(CornerRadius::same(10)),
+                .corner_radius(CornerRadius::same(theme::radius::LG)),
        )
        .show(ctx, |ui| {
            ui.set_width(420.0);
@@ -321,9 +322,9 @@ pub fn confirm(ctx: &egui::Context, id: &str, heading: &str, body: &str, verb: &
                    .strong()
                    .color(theme::text()),
            );
-            ui.add_space(6.0);
+            ui.add_space(theme::space::S);
            ui.label(theme::Role::Body.rich(body).color(theme::muted()));
-            ui.add_space(16.0);
+            ui.add_space(theme::space::XL);
            ui.with_layout(egui::Layout::right_to_left(egui::Align::Center), |ui| {
                if danger_button(ui, verb).clicked() {
                    answer = Answer::Confirmed;
@@ -382,15 +383,17 @@ pub fn tabs(ui: &mut egui::Ui, id: egui::Id, items: &[(&str, bool)]) -> Option<u
        // the pill from overshooting when it moves between tabs of different
        // lengths — both edges arrive at the same time.
        let ctx = ui.ctx();
-        let left = ctx.animate_value_with_time(id.with("left"), target.left(), 0.16);
-        let right = ctx.animate_value_with_time(id.with("right"), target.right(), 0.16);
+        let left =
+            ctx.animate_value_with_time(id.with("left"), target.left(), theme::motion::STATE);
+        let right =
+            ctx.animate_value_with_time(id.with("right"), target.right(), theme::motion::STATE);
        let rect = Rect::from_min_max(
            egui::pos2(left, target.top()),
            egui::pos2(right, target.bottom()),
        );
        ui.painter().set(
            pill,
-            theme::accent_shape(ui.ctx(), rect, CornerRadius::same(8)),
+            theme::accent_shape(ui.ctx(), rect, CornerRadius::same(theme::radius::MD)),
        );
    }

@@ -431,17 +434,21 @@ fn filled(ui: &mut egui::Ui, text: &str, fill: Fill, extra: Vec2) -> egui::Respo
        return response;
    }

-    let radius = CornerRadius::same(8);
+    let radius = CornerRadius::same(theme::radius::MD);
    // Eased rather than switched, so the veil arrives over a few frames instead
    // of appearing whole the moment the pointer crosses the edge. The press is
    // quicker than the hover: a click should feel like it registered, not like
    // it was considered.
    let ctx = ui.ctx().clone();
-    let hover = ctx.animate_bool_with_time(response.id.with("hover"), response.hovered(), 0.10);
+    let hover = ctx.animate_bool_with_time(
+        response.id.with("hover"),
+        response.hovered(),
+        theme::motion::HOVER,
+    );
    let press = ctx.animate_bool_with_time(
        response.id.with("press"),
        response.is_pointer_button_down_on(),
-        0.05,
+        theme::motion::PRESS,
    );
    let lift = 0.10 * hover * (1.0 - press) - 0.14 * press;

@@ -510,7 +517,7 @@ pub fn card(ui: &mut egui::Ui, card: Card<'_>) -> egui::Response {
    let width = card.width;
    let image_height = (width * theme::CARD_ASPECT).round();
    let text_height = CARD_TEXT_HEIGHT;
-    let radius = CornerRadius::same(8);
+    let radius = CornerRadius::same(theme::radius::MD);

    let (rect, response) =
        ui.allocate_exact_size(Vec2::new(width, image_height + text_height), Sense::click());
@@ -533,14 +540,16 @@ pub fn card(ui: &mut egui::Ui, card: Card<'_>) -> egui::Response {
    let hover = ui.ctx().animate_bool_with_time(
        response.id.with("hover"),
        response.hovered() || response.has_focus(),
-        0.12,
+        theme::motion::HOVER,
    );
    // The picture arrives whenever its download finishes, several frames after
    // the tile first drew. Fading it in over the placeholder turns a wall of
    // letters popping into stills into one settle.
-    let art_in = ui
-        .ctx()
-        .animate_bool_with_time(response.id.with("art"), card.art.is_some(), 0.22);
+    let art_in = ui.ctx().animate_bool_with_time(
+        response.id.with("art"),
+        card.art.is_some(),
+        theme::motion::ARRIVE,
+    );
    let painter = ui.painter();

    if hover > 0.0 {
@@ -591,7 +600,7 @@ pub fn card(ui: &mut egui::Ui, card: Card<'_>) -> egui::Response {
        );
        painter.rect_filled(
            background,
-            CornerRadius::same(4),
+            CornerRadius::same(theme::radius::BADGE),
            Color32::from_black_alpha(180),
        );
        painter.galley(background.min + Vec2::new(5.0, 2.0), galley, Color32::WHITE);
@@ -724,7 +733,7 @@ pub(crate) fn placeholder(painter: &egui::Painter, rect: Rect, name: &str, opaci
    theme::ramp_fill(
        painter,
        rect,
-        CornerRadius::same(8),
+        CornerRadius::same(theme::radius::MD),
        (from, to),
        theme::Direction::Vertical,
        opacity,
@@ -66,6 +66,10 @@ const SKIP_PAD_X: f32 = 22.0;
 /// on the full wash. See [`scrim_bottom`].
 const SCRIM_ALPHA: f32 = 170.0;
 const SCRIM_FADE: f32 = 88.0;
+/// How wide the episode list is, at most. A narrow window gives it less.
+const DRAWER_WIDTH: f32 = 380.0;
+/// The stills in the episode list.
+const DRAWER_STILL: Vec2 = Vec2::new(112.0, 63.0);

 /// State the page keeps between frames.
 ///
@@ -109,6 +113,17 @@ pub struct Chrome<'a> {
    pub up_next: Option<UpNextCard>,
    /// Whether stepping to another episode is possible in either direction.
    pub neighbours: Neighbours,
+    /// The title's episodes, when it has more than one — what the list down
+    /// the right of the picture shows.
+    pub episodes: Option<Episodes<'a>>,
+}
+
+/// The playing title's episodes, for the list beside the picture.
+pub struct Episodes<'a> {
+    pub title: &'a pstr_core::library::Title,
+    pub art: ui::Art<'a>,
+    /// Whether the list is out.
+    pub open: bool,
 }

 /// What the end-of-episode card says, when there is one.
@@ -187,6 +202,7 @@ pub fn show(
        overlay,
        up_next,
        neighbours,
+        mut episodes,
    } = chrome_state;
    let ctx = ui.ctx().clone();
    let rect = ui.available_rect_before_wrap();
@@ -228,7 +244,10 @@ pub fn show(
        actions.push(Action::ToggleFullscreen);
    }

-    let visible = overlay.visible(&ctx, playback);
+    let drawer_open = episodes.as_ref().is_some_and(|list| list.open);
+    // The controls stay up while the list is out: it hangs off the button in
+    // the title strip, and is read at leisure.
+    let visible = overlay.visible(&ctx, playback) || drawer_open;
    // Above the chrome when it is up, at the bottom corner when it is not —
    // and clear of it either way, which is what the measured height buys.
    let float_above = if visible {
@@ -251,7 +270,7 @@ pub fn show(

    // Faded rather than switched, both ways: controls that blink out under a
    // reading eye are more distracting than the ones that were there.
-    let fade = ctx.animate_bool_with_time(ui.id().with("chrome"), visible, 0.18);
+    let fade = ctx.animate_bool_with_time(ui.id().with("chrome"), visible, theme::motion::FADE);
    if fade > 0.0 {
        overlay.chrome_height = ui
            .scope(|ui| {
@@ -260,6 +279,7 @@ pub fn show(
                    ui,
                    playback,
                    neighbours,
+                    episodes.as_ref().map(|list| list.open),
                    rect,
                    overlay.chrome_height,
                    actions,
@@ -267,6 +287,11 @@ pub fn show(
            })
            .inner;
    }
+    if let Some(list) = episodes.as_mut().filter(|list| list.open) {
+        episode_drawer(&ctx, list, playback, rect, overlay.chrome_height, actions);
+    } else {
+        ctx.data_mut(|data| data.remove::<String>(egui::Id::new(DRAWER_SCROLLED)));
+    }
    if !visible {
        ui.ctx().set_cursor_icon(egui::CursorIcon::None);
        // The controls have to disappear on their own, and nothing else is
@@ -379,7 +404,7 @@ fn between(ui: &mut egui::Ui, opening: Option<&str>, rect: Rect, actions: &mut V
            if ui.button("Back").clicked() {
                actions.push(Action::LeavePlayer);
            }
-            ui.add_space(8.0);
+            ui.add_space(theme::space::M);
            ui.add(egui::Spinner::new().size(14.0));
        },
    );
@@ -479,7 +504,7 @@ fn up_next_card(
        egui::Frame::new()
            .fill(Color32::from_black_alpha(215))
            .stroke(egui::Stroke::new(1.0, Color32::from_white_alpha(120)))
-            .corner_radius(CornerRadius::same(8))
+            .corner_radius(CornerRadius::same(theme::radius::MD))
            .inner_margin(egui::Margin::same(12))
            .show(ui, |ui| {
                ui.set_width(size.x - 24.0);
@@ -488,7 +513,7 @@ fn up_next_card(
                    // coming and when, read in one glance.
                    let (frame, response) = ui.allocate_exact_size(STILL, Sense::click());
                    let painter = ui.painter();
-                    let radius = CornerRadius::same(6);
+                    let radius = CornerRadius::same(theme::radius::SM);
                    match &card.still {
                        Some(texture) => {
                            painter.add(
@@ -518,7 +543,7 @@ fn up_next_card(
                        actions.push(Action::PlayAdjacent(Adjacent::Next));
                    }

-                    ui.add_space(10.0);
+                    ui.add_space(theme::space::L);
                    ui.vertical(|ui| {
                        ui.label(
                            theme::Role::Caption
@@ -535,12 +560,12 @@ fn up_next_card(
                            )
                            .truncate(),
                        );
-                        ui.add_space(6.0);
+                        ui.add_space(theme::space::S);
                        ui.horizontal(|ui| {
                            if ui::accent_button(ui, "Play now").clicked() {
                                actions.push(Action::PlayAdjacent(Adjacent::Next));
                            }
-                            ui.add_space(6.0);
+                            ui.add_space(theme::space::S);
                            if ui
                                .button("Watch till the end")
                                .on_hover_text("Play this one out — nothing will be skipped")
@@ -618,6 +643,7 @@ fn chrome(
    ui: &mut egui::Ui,
    playback: &Playback,
    neighbours: Neighbours,
+    drawer: Option<bool>,
    rect: Rect,
    previous_height: f32,
    actions: &mut Vec<Action>,
@@ -633,7 +659,7 @@ fn chrome(
                .add(
                    egui::Button::new(theme::Role::Label.rich("Library"))
                        .fill(Color32::from_black_alpha(160))
-                        .corner_radius(CornerRadius::same(8))
+                        .corner_radius(CornerRadius::same(theme::radius::MD))
                        .min_size(Vec2::new(96.0, 32.0)),
                )
                .on_hover_text("Keep playing, and go back to the library (Esc)")
@@ -641,7 +667,7 @@ fn chrome(
            {
                actions.push(Action::LeavePlayer);
            }
-            ui.add_space(14.0);
+            ui.add_space(theme::space::L);
            ui.vertical(|ui| {
                ui.label(
                    theme::Role::Heading
@@ -657,18 +683,56 @@ fn chrome(
            });

            ui.with_layout(egui::Layout::right_to_left(egui::Align::Center), |ui| {
+                let fullscreen = ui.input(|input| input.viewport().fullscreen.unwrap_or(false));
                if ui
                    .add(
-                        egui::Button::new(theme::Role::Subhead.rich("⛶"))
-                            .fill(Color32::from_black_alpha(160))
-                            .corner_radius(CornerRadius::same(8))
-                            .min_size(Vec2::new(38.0, 32.0)),
+                        egui::Button::new(theme::Role::Subhead.rich(if fullscreen {
+                            egui_phosphor::regular::CORNERS_IN
+                        } else {
+                            egui_phosphor::regular::CORNERS_OUT
+                        }))
+                        .fill(Color32::from_black_alpha(160))
+                        .corner_radius(CornerRadius::same(theme::radius::MD))
+                        .min_size(Vec2::new(38.0, 32.0)),
                    )
-                    .on_hover_text("Fullscreen (F)")
+                    .on_hover_text(if fullscreen {
+                        "Leave fullscreen (F)"
+                    } else {
+                        "Fullscreen (F)"
+                    })
                    .clicked()
                {
                    actions.push(Action::ToggleFullscreen);
                }
+                if let Some(open) = drawer {
+                    ui.add_space(theme::space::S);
+                    let fill = if open {
+                        theme::accent()
+                    } else {
+                        Color32::from_black_alpha(160)
+                    };
+                    let ink = if open {
+                        theme::on_accent()
+                    } else {
+                        Color32::WHITE
+                    };
+                    if ui
+                        .add(
+                            egui::Button::new(
+                                theme::Role::Subhead
+                                    .rich(egui_phosphor::regular::LIST_BULLETS)
+                                    .color(ink),
+                            )
+                            .fill(fill)
+                            .corner_radius(CornerRadius::same(theme::radius::MD))
+                            .min_size(Vec2::new(38.0, 32.0)),
+                        )
+                        .on_hover_text("Episodes (E)")
+                        .clicked()
+                    {
+                        actions.push(Action::ToggleEpisodes);
+                    }
+                }
            });
        },
    );
@@ -707,6 +771,216 @@ fn chrome(
    measured + CHROME_PAD_TOP + CHROME_PAD_BOTTOM
 }

+/// Which file the episode list last scrolled to, in egui's memory, so it
+/// scrolls to the playing one once when it opens rather than every frame.
+const DRAWER_SCROLLED: &str = "episode-drawer-scrolled";
+
+/// The title's episodes, down the right of the picture between the title
+/// strip and the controls. A season at a time, opened on the playing one.
+fn episode_drawer(
+    ctx: &egui::Context,
+    list: &mut Episodes<'_>,
+    playback: &Playback,
+    rect: Rect,
+    chrome_height: f32,
+    actions: &mut Vec<Action>,
+) {
+    let width = DRAWER_WIDTH.min(rect.width() * 0.45);
+    let area = Rect::from_min_max(
+        egui::pos2(rect.right() - width - 16.0, rect.top() + TITLE_HEIGHT),
+        egui::pos2(rect.right() - 16.0, rect.bottom() - chrome_height - 8.0),
+    );
+    if area.height() < 160.0 {
+        return;
+    }
+    let title = list.title;
+    let target = &playback.target;
+    let is_playing = |episode: &pstr_core::library::Episode| {
+        episode.node.share_id == target.share_id && episode.node.link_id == target.link_id
+    };
+    let playing_season = title
+        .seasons
+        .iter()
+        .position(|season| season.episodes.iter().any(is_playing))
+        .unwrap_or(0);
+    let season_id = egui::Id::new(("episode-drawer-season", &title.key));
+    let mut season = ctx
+        .data(|data| data.get_temp::<usize>(season_id))
+        .unwrap_or(playing_season)
+        .min(title.seasons.len().saturating_sub(1));
+
+    let margin = theme::space::L;
+    egui::Area::new(egui::Id::new("episode-drawer"))
+        .order(egui::Order::Foreground)
+        .fixed_pos(area.min)
+        .show(ctx, |ui| {
+            egui::Frame::new()
+                .fill(theme::surface().gamma_multiply(0.96))
+                .corner_radius(CornerRadius::same(theme::radius::LG))
+                .inner_margin(egui::Margin::same(margin as i8))
+                .shadow(theme::tile_shadow(1.0))
+                .show(ui, |ui| {
+                    ui.set_width(area.width() - 2.0 * margin);
+                    ui.set_height(area.height() - 2.0 * margin);
+                    ui.horizontal(|ui| {
+                        ui.label(theme::Role::Heading.rich("Episodes").color(theme::text()));
+                        ui.with_layout(egui::Layout::right_to_left(egui::Align::Center), |ui| {
+                            if ui
+                                .add(
+                                    egui::Button::new(
+                                        theme::Role::Subhead
+                                            .rich(egui_phosphor::regular::X)
+                                            .color(theme::muted()),
+                                    )
+                                    .frame(false),
+                                )
+                                .on_hover_text("Close (E)")
+                                .clicked()
+                            {
+                                actions.push(Action::ToggleEpisodes);
+                            }
+                        });
+                    });
+                    if title.seasons.len() > 1 {
+                        ui.add_space(theme::space::XS);
+                        let labels: Vec<(usize, String)> = title
+                            .seasons
+                            .iter()
+                            .enumerate()
+                            .map(|(index, season)| (index, season.label()))
+                            .collect();
+                        let choices: Vec<(usize, &str)> = labels
+                            .iter()
+                            .map(|(index, label)| (*index, label.as_str()))
+                            .collect();
+                        egui::ScrollArea::horizontal()
+                            .id_salt("drawer-seasons")
+                            .show(ui, |ui| {
+                                if let Some(picked) = ui::widgets::segmented(ui, season, &choices) {
+                                    season = picked;
+                                    ctx.data_mut(|data| data.insert_temp(season_id, picked));
+                                }
+                            });
+                    }
+                    ui.add_space(theme::space::S);
+
+                    let Some(shown) = title.seasons.get(season) else {
+                        return;
+                    };
+                    egui::ScrollArea::vertical()
+                        .id_salt("drawer-episodes")
+                        .auto_shrink([false, false])
+                        .show(ui, |ui| {
+                            for episode in &shown.episodes {
+                                let row = drawer_row(
+                                    ui,
+                                    &mut list.art,
+                                    title,
+                                    episode,
+                                    is_playing(episode),
+                                    actions,
+                                );
+                                if is_playing(episode) {
+                                    let scrolled = ctx.data(|data| {
+                                        data.get_temp::<String>(egui::Id::new(DRAWER_SCROLLED))
+                                    });
+                                    if scrolled.as_deref() != Some(target.link_id.as_str()) {
+                                        row.scroll_to_me(Some(egui::Align::Center));
+                                        ctx.data_mut(|data| {
+                                            data.insert_temp(
+                                                egui::Id::new(DRAWER_SCROLLED),
+                                                target.link_id.clone(),
+                                            )
+                                        });
+                                    }
+                                }
+                            }
+                        });
+                });
+        });
+}
+
+/// One episode in the list: its still, which plays it, and what it is.
+fn drawer_row(
+    ui: &mut egui::Ui,
+    art: &mut ui::Art<'_>,
+    title: &pstr_core::library::Title,
+    episode: &pstr_core::library::Episode,
+    playing: bool,
+    actions: &mut Vec<Action>,
+) -> egui::Response {
+    let frame = egui::Frame::new()
+        .corner_radius(CornerRadius::same(theme::radius::MD))
+        .inner_margin(egui::Margin::same(6))
+        .fill(if playing {
+            theme::accent_dim()
+        } else {
+            Color32::TRANSPARENT
+        });
+    let response = frame
+        .show(ui, |ui| {
+            ui.set_width(ui.available_width());
+            ui.horizontal_top(|ui| {
+                ui::title::still(
+                    ui,
+                    art,
+                    title,
+                    episode,
+                    episode.is_watched(),
+                    DRAWER_STILL,
+                    actions,
+                );
+                ui.add_space(theme::space::M);
+                ui.vertical(|ui| {
+                    ui.spacing_mut().item_spacing.y = theme::space::XXS;
+                    let name = art
+                        .episode(&title.key, episode)
+                        .and_then(|found| found.name.clone())
+                        .unwrap_or_else(|| episode.detail().to_owned());
+                    if let Some(numbering) = episode.numbering() {
+                        ui.label(
+                            egui::RichText::new(numbering)
+                                .monospace()
+                                .color(theme::muted()),
+                        );
+                    }
+                    let mut job = egui::text::LayoutJob::simple(
+                        name,
+                        theme::Role::Label.font(),
+                        if episode.is_watched() && !playing {
+                            theme::muted()
+                        } else {
+                            theme::text()
+                        },
+                        ui.available_width(),
+                    );
+                    job.wrap.max_rows = 2;
+                    job.wrap.overflow_character = Some('…');
+                    ui.label(job);
+                    let state = if playing {
+                        Some("Playing".to_owned())
+                    } else if episode.is_watched() {
+                        Some("Watched".to_owned())
+                    } else {
+                        episode
+                            .resume_at()
+                            .map(|at| format!("Stopped at {}", ui::format_time(at)))
+                    };
+                    if let Some(state) = state {
+                        ui.label(theme::Role::Caption.rich(state).color(if playing {
+                            theme::accent()
+                        } else {
+                            theme::muted()
+                        }));
+                    }
+                });
+            });
+        })
+        .response;
+    ui.add_space(theme::space::XXS);
+    response
+}
+
 /// The gradient behind the title strip, fading downwards out of the top edge.
 fn scrim_top(ui: &egui::Ui, rect: Rect) {
    // Squared, so the fade is dark where the text is and gone well before the
@@ -50,7 +50,7 @@ pub fn show(
                ui.add_space(margin);
                ui.vertical(|ui| {
                    ui.set_width(width);
-                    ui.add_space(8.0);
+                    ui.add_space(theme::space::M);
                    appearance_form(ui, prefs.appearance, actions);
                    playback_form(ui, prefs, actions);
                    storage_form(ui, prefs, actions);
@@ -68,9 +68,9 @@ pub fn show(
 /// only changed a small square would be asking someone to imagine the result.
 fn appearance_form(ui: &mut egui::Ui, appearance: Appearance, actions: &mut Vec<Action>) {
    ui::widgets::settings_group(ui, "Appearance", None, |ui| {
-        ui.add_space(12.0);
+        ui.add_space(theme::space::L);
        ui.label(theme::Role::Body.rich("Palette").color(theme::text()));
-        ui.add_space(8.0);
+        ui.add_space(theme::space::M);
        ui.spacing_mut().item_spacing = egui::vec2(10.0, 10.0);
        ui.horizontal_wrapped(|ui| {
            for flavor in Flavor::ALL {
@@ -86,7 +86,7 @@ fn appearance_form(ui: &mut egui::Ui, appearance: Appearance, actions: &mut Vec<
                }
            }
        });
-        ui.add_space(14.0);
+        ui.add_space(theme::space::L);
        ui.spacing_mut().item_spacing.y = 0.0;

        ui::widgets::settings_row(ui, "Accent", None, |ui| {
@@ -132,11 +132,11 @@ fn palette_card(ui: &mut egui::Ui, appearance: Appearance, flavor: Flavor) -> eg
            ..appearance
        });
        let selected = appearance.flavor == flavor;
-        let hover = ui
-            .ctx()
-            .animate_bool_with_time(response.id, response.hovered(), 0.10);
+        let hover =
+            ui.ctx()
+                .animate_bool_with_time(response.id, response.hovered(), theme::motion::HOVER);
        let painter = ui.painter();
-        let radius = egui::CornerRadius::same(8);
+        let radius = egui::CornerRadius::same(theme::radius::MD);
        let preview = egui::Rect::from_min_size(rect.min, egui::vec2(size.x, 64.0));

        painter.rect_filled(preview, radius, palette.background);
@@ -155,11 +155,20 @@ fn palette_card(ui: &mut egui::Ui, appearance: Appearance, flavor: Flavor) -> eg
            egui::Rect::from_min_size(preview.min + egui::vec2(x, 20.0), egui::vec2(34.0, 22.0))
        };
        for x in [8.0, 49.0, 90.0] {
-            painter.rect_filled(tile(x), egui::CornerRadius::same(3), palette.card);
+            painter.rect_filled(
+                tile(x),
+                egui::CornerRadius::same(theme::radius::BAR),
+                palette.card,
+            );
        }
        let pill =
            egui::Rect::from_min_size(preview.min + egui::vec2(8.0, 3.0), egui::vec2(22.0, 6.0));
-        theme::swatch_fill(painter, pill, egui::CornerRadius::same(3), &palette);
+        theme::swatch_fill(
+            painter,
+            pill,
+            egui::CornerRadius::same(theme::radius::BAR),
+            &palette,
+        );
        painter.hline(
            (preview.left() + 8.0)..=(preview.left() + 60.0),
            preview.top() + 50.0,
@@ -354,7 +363,7 @@ fn metadata_form(
    actions: &mut Vec<Action>,
 ) {
    ui::widgets::settings_group(ui, "Posters and descriptions", None, |ui| {
-        ui.add_space(12.0);
+        ui.add_space(theme::space::L);
        ui.spacing_mut().item_spacing.y = 6.0;
        ui.label(ui::muted(
            "A share filled by the Proton Drive desktop client carries no thumbnails, so \
@@ -362,7 +371,7 @@ fn metadata_form(
                 in your library — not your files, and nothing about what you have watched — to \
                 the provider you choose, over HTTPS, each time a new one appears.",
        ));
-        ui.add_space(10.0);
+        ui.add_space(theme::space::L);

        let mut changed = false;
        let mut enabled = settings.enabled;
@@ -372,7 +381,7 @@ fn metadata_form(
        }

        if settings.enabled {
-            ui.add_space(10.0);
+            ui.add_space(theme::space::L);
            ui.label(ui::muted("Provider"));
            for provider in ProviderId::ALL {
                if ui
@@ -387,7 +396,7 @@ fn metadata_form(
            }

            if settings.provider.needs_api_key() {
-                ui.add_space(10.0);
+                ui.add_space(theme::space::L);
                ui.label(ui::muted(format!("{} API key", settings.provider.label())));
                ui.horizontal(|ui| {
                    ui.add(
@@ -409,7 +418,7 @@ fn metadata_form(
                ));
            }

-            ui.add_space(12.0);
+            ui.add_space(theme::space::L);
            ui.horizontal(|ui| {
                if ui::accent_button(ui, "Match the library").clicked() {
                    actions.push(Action::MatchTitles { force: false });
@@ -423,7 +432,7 @@ fn metadata_form(
                }
            });
        } else {
-            ui.add_space(6.0);
+            ui.add_space(theme::space::S);
            ui.label(ui::muted(
                "Off. Nothing is sent anywhere, and turning it off also deletes the answers \
                     already stored.",
@@ -433,6 +442,6 @@ fn metadata_form(
        if changed {
            actions.push(Action::SetMetadataConfig(settings.clone()));
        }
-        ui.add_space(12.0);
+        ui.add_space(theme::space::L);
    });
 }
@@ -38,7 +38,7 @@ pub fn show(
                share_row(ui, share, titles, actions);
            }

-            ui.add_space(22.0);
+            ui.add_space(theme::space::XXL);
            add_form(ui, shares, form, actions);
        });
 }
@@ -46,7 +46,7 @@ pub fn show(
 fn share_row(ui: &mut egui::Ui, share: &Share, titles: usize, actions: &mut Vec<Action>) {
    egui::Frame::new()
        .fill(theme::card())
-        .corner_radius(egui::CornerRadius::same(8))
+        .corner_radius(egui::CornerRadius::same(theme::radius::MD))
        .inner_margin(egui::Margin::symmetric(12, 10))
        .show(ui, |ui| {
            ui.set_width(ui.available_width());
@@ -76,7 +76,7 @@ fn share_row(ui: &mut egui::Ui, share: &Share, titles: usize, actions: &mut Vec<
                });
            });
        });
-    ui.add_space(6.0);
+    ui.add_space(theme::space::S);
 }

 fn add_form(ui: &mut egui::Ui, shares: &[Share], form: &mut ShareForm, actions: &mut Vec<Action>) {
@@ -85,11 +85,11 @@ fn add_form(ui: &mut egui::Ui, shares: &[Share], form: &mut ShareForm, actions:
        "Paste the whole link, including everything after the # — that part is the key that \
         decrypts it, and it is stored in your system keyring rather than on disk.",
    ));
-    ui.add_space(10.0);
+    ui.add_space(theme::space::L);

    egui::Frame::new()
        .fill(theme::card())
-        .corner_radius(egui::CornerRadius::same(8))
+        .corner_radius(egui::CornerRadius::same(theme::radius::MD))
        .inner_margin(egui::Margin::same(14))
        .show(ui, |ui| {
            ui.set_width(ui.available_width().min(640.0));
@@ -100,7 +100,7 @@ fn add_form(ui: &mut egui::Ui, shares: &[Share], form: &mut ShareForm, actions:
                    .hint_text("Anime")
                    .desired_width(f32::INFINITY),
            );
-            ui.add_space(8.0);
+            ui.add_space(theme::space::M);

            ui.label(ui::muted("Link"));
            ui.horizontal(|ui| {
@@ -134,11 +134,11 @@ fn add_form(ui: &mut egui::Ui, shares: &[Share], form: &mut ShareForm, actions:
            if let Some(problem) = &problem {
                ui.label(theme::Role::Caption.rich(problem).color(theme::danger()));
            }
-            ui.add_space(8.0);
+            ui.add_space(theme::space::M);

            ui::widgets::toggle(ui, &mut form.has_password, "The link asks for a password");
            if form.has_password {
-                ui.add_space(6.0);
+                ui.add_space(theme::space::S);
                ui.add(
                    egui::TextEdit::singleline(&mut form.password)
                        .password(true)
@@ -147,7 +147,7 @@ fn add_form(ui: &mut egui::Ui, shares: &[Share], form: &mut ShareForm, actions:
                );
            }

-            ui.add_space(12.0);
+            ui.add_space(theme::space::L);
            let ready = !form.name.trim().is_empty()
                && !form.url.trim().is_empty()
                && problem.is_none()
@@ -156,7 +156,7 @@ fn add_form(ui: &mut egui::Ui, shares: &[Share], form: &mut ShareForm, actions:

            if let Some(error) = &form.error {
                ui.label(theme::Role::Caption.rich(error).color(theme::danger()));
-                ui.add_space(6.0);
+                ui.add_space(theme::space::S);
            }
            ui.horizontal(|ui| {
                if ui
@@ -13,7 +13,10 @@ const GROUPS: &[(&str, &[(&str, &str)])] = &[
        &[
            ("Ctrl F  or  /", "Search the library"),
            ("F5  or  Ctrl R", "Crawl every share again"),
-            ("Ctrl 1 – 4", "Library, Shares, Downloads, Settings"),
+            (
+                "Ctrl 1 – 5",
+                "Library, History, Shares, Downloads, Settings",
+            ),
            ("Ctrl ,", "Settings"),
            ("Ctrl V", "Paste a share link to add it"),
            ("Tab  or  arrows", "Move between titles and episodes"),
@@ -33,6 +36,7 @@ const GROUPS: &[(&str, &[(&str, &str)])] = &[
            ("N  /  P", "Next and previous episode"),
            ("[  /  ]", "Slower and faster"),
            ("S", "Skip the opening or the credits"),
+            ("E", "The list of episodes"),
            ("F  or  double-click", "Fullscreen"),
            ("Esc", "Leave fullscreen, then the player"),
        ],
@@ -47,7 +51,7 @@ pub fn show(ctx: &egui::Context) -> bool {
            egui::Frame::new()
                .fill(theme::surface())
                .inner_margin(egui::Margin::same(20))
-                .corner_radius(egui::CornerRadius::same(12)),
+                .corner_radius(egui::CornerRadius::same(theme::radius::LG)),
        )
        .show(ctx, |ui| {
            ui.set_width(460.0);
@@ -60,9 +64,9 @@ pub fn show(ctx: &egui::Context) -> bool {
                });
            });
            for (heading, keys) in GROUPS {
-                ui.add_space(12.0);
+                ui.add_space(theme::space::L);
                ui.label(ui::muted(heading.to_uppercase()));
-                ui.add_space(4.0);
+                ui.add_space(theme::space::XS);
                egui::Grid::new(*heading)
                    .num_columns(2)
                    .spacing([18.0, 8.0])
@@ -33,13 +33,13 @@ pub fn show(
    if back_link(ui).clicked() {
        actions.push(Action::Goto(Page::Library));
    }
-    ui.add_space(6.0);
+    ui.add_space(theme::space::S);

    egui::ScrollArea::vertical()
        .auto_shrink([false, false])
        .show(ui, |ui| {
            header(ui, art, title, &offline, actions);
-            ui.add_space(18.0);
+            ui.add_space(theme::space::XL);

            // One season at a time, picked from a row of pills, rather than
            // every season stacked as a collapsing header: a four-season show
@@ -78,7 +78,7 @@ pub fn show(
                        picked = index;
                        ui.data_mut(|data| data.insert_temp(picked_id, index));
                    }
-                    ui.add_space(10.0);
+                    ui.add_space(theme::space::L);
                }
                ui.label(ui::muted(ui::library::plural(
                    season.episodes.len(),
@@ -88,7 +88,7 @@ pub fn show(
                    season_download(ui, title, season, &offline, actions);
                });
            });
-            ui.add_space(10.0);
+            ui.add_space(theme::space::L);

            let Some(season) = title.seasons.get(picked) else {
                return;
@@ -96,7 +96,7 @@ pub fn show(
            for episode in &season.episodes {
                episode_row(ui, art, title, season, episode, &offline, actions);
            }
-            ui.add_space(12.0);
+            ui.add_space(theme::space::L);
        });
 }

@@ -105,7 +105,7 @@ pub fn show(
 fn poster(ui: &mut egui::Ui, texture: &egui::TextureHandle, progress: Option<f64>) {
    let size = egui::vec2(180.0, 270.0);
    let (rect, _) = ui.allocate_exact_size(size, egui::Sense::hover());
-    let radius = egui::CornerRadius::same(10);
+    let radius = egui::CornerRadius::same(theme::radius::LG);
    ui.painter()
        .add(theme::tile_shadow(1.0).as_shape(rect, radius));
    ui.painter().add(
@@ -128,7 +128,7 @@ fn poster(ui: &mut egui::Ui, texture: &egui::TextureHandle, progress: Option<f64
 /// "← Library", as a link rather than a button: it is navigation, and a
 /// filled button beside the page's real actions competed with them.
 fn back_link(ui: &mut egui::Ui) -> egui::Response {
-    let text = theme::Role::Label.rich("←  Library");
+    let text = theme::Role::Label.rich(format!("{}  Library", egui_phosphor::regular::ARROW_LEFT));
    let response = ui.add(egui::Label::new(text.color(theme::muted())).sense(egui::Sense::click()));
    if response.hovered() {
        ui.painter().hline(
@@ -201,7 +201,7 @@ fn header(
        .as_ref()
        .map(|(texture, _)| (texture.clone(), ui.painter().add(egui::Shape::Noop)));

-    ui.add_space(6.0);
+    ui.add_space(theme::space::S);
    ui.horizontal_top(|ui| {
        match &picture {
            // A poster is drawn as a poster. Fitted into the 16:9 tile the grid
@@ -224,7 +224,7 @@ fn header(
            }
        }

-        ui.add_space(22.0);
+        ui.add_space(theme::space::XXL);
        ui.vertical(|ui| {
            // Text in a column a person can read, with the picture to the
            // right of it rather than under it.
@@ -242,9 +242,9 @@ fn header(
                    if by_hand { " (chosen by hand)" } else { "" }
                )));
            }
-            ui.add_space(4.0);
+            ui.add_space(theme::space::XS);
            ui.label(ui::muted(meta_line(title, found.as_ref())));
-            ui.add_space(14.0);
+            ui.add_space(theme::space::L);

            ui.horizontal(|ui| {
                if let Some(episode) = title.next_up() {
@@ -342,14 +342,14 @@ fn header(
            });

            if let Some(found) = &found {
-                ui.add_space(14.0);
+                ui.add_space(theme::space::L);
                description(ui, found);
            }
        });
    });

    if let Some((texture, index)) = backdrop {
-        ui.add_space(10.0);
+        ui.add_space(theme::space::L);
        band(ui, &texture, index);
    }
 }
@@ -456,7 +456,7 @@ fn description(ui: &mut egui::Ui, found: &TitleMetadata) {
                ui::widgets::chip(ui, genre);
            }
        });
-        ui.add_space(8.0);
+        ui.add_space(theme::space::M);
    }
    if let Some(overview) = &found.overview {
        // Four lines, then "More". A provider's synopsis runs to three
@@ -496,7 +496,7 @@ fn description(ui: &mut egui::Ui, found: &TitleMetadata) {
        }
    }
    if let Some(url) = &found.url {
-        ui.add_space(8.0);
+        ui.add_space(theme::space::M);
        ui.hyperlink_to(
            ui::muted(format!("More on {}", found.provider.label())),
            url,
@@ -532,7 +532,7 @@ fn meta_line(title: &Title, found: Option<&TitleMetadata>) -> String {

    if let Some(found) = found {
        if let Some(rating) = found.rating {
-            parts.push(format!("★ {rating:.1}"));
+            parts.push(format!("{} {rating:.1}", egui_phosphor::regular::STAR));
        }
        // Only when it disagrees with what is on disk: "25 episodes · 25
        // episodes" tells nobody anything, but "12 episodes · 25 on AniList"
@@ -573,15 +573,15 @@ fn episode_row(
    let row_id = ui.id().with(("episode", &episode.node.link_id));

    let frame = egui::Frame::new()
-        .corner_radius(egui::CornerRadius::same(10))
+        .corner_radius(egui::CornerRadius::same(theme::radius::LG))
        .inner_margin(egui::Margin::same(8));
    let mut prepared = frame.begin(ui);
    {
        let ui = &mut prepared.content_ui;
        ui.set_width(ui.available_width());
        ui.horizontal_top(|ui| {
-            still(ui, art, title, episode, watched, actions);
-            ui.add_space(6.0);
+            still(ui, art, title, episode, watched, STILL, actions);
+            ui.add_space(theme::space::S);

            let controls = 96.0;
            let text_width = (ui.available_width() - controls).max(120.0);
@@ -643,8 +643,13 @@ fn episode_row(
                }
            });

-            ui.with_layout(egui::Layout::right_to_left(egui::Align::Center), |ui| {
-                ui.set_min_height(STILL.y);
+            // A fixed height, the still's. `with_layout` would hand the
+            // buttons all the height left in the scroll area's viewport and
+            // centre them in it, so whichever row sat highest on screen
+            // stretched down to the bottom of the window.
+            let cluster = egui::vec2(ui.available_width(), STILL.y);
+            let layout = egui::Layout::right_to_left(egui::Align::Center);
+            ui.allocate_ui_with_layout(cluster, layout, |ui| {
                if ui::widgets::watched_mark(ui, watched)
                    .on_hover_text(if watched {
                        "Mark unwatched"
@@ -660,7 +665,7 @@ fn episode_row(
                        duration: episode.watch.and_then(|watch| watch.duration_secs),
                    });
                }
-                ui.add_space(6.0);
+                ui.add_space(theme::space::S);
                download(ui, title, episode, offline, actions);
            });
        });
@@ -671,11 +676,11 @@ fn episode_row(
    let lit = ui.ctx().animate_bool_with_time(
        row_id,
        response.hovered() || response.contains_pointer(),
-        0.10,
+        theme::motion::HOVER,
    );
    prepared.frame.fill = theme::card().gamma_multiply(0.35 + 0.65 * lit);
    prepared.paint(ui);
-    ui.add_space(2.0);
+    ui.add_space(theme::space::XXS);
 }

 /// The grey line under an episode's name: when it aired, how big it is, and
@@ -711,19 +716,20 @@ fn details(episode: &Episode, air_date: Option<&str>) -> String {
 /// An explicit target rather than a clickable row: the row also carries the
 /// watched mark and the download button, and a click that meant either of
 /// those must never be one that starts a 1.4 GiB stream instead.
-fn still(
+pub(crate) fn still(
    ui: &mut egui::Ui,
    art: &mut Art<'_>,
    title: &Title,
    episode: &Episode,
    watched: bool,
+    size: egui::Vec2,
    actions: &mut Vec<Action>,
 ) {
-    let (rect, response) = ui.allocate_exact_size(STILL, egui::Sense::click());
+    let (rect, response) = ui.allocate_exact_size(size, egui::Sense::click());
    if !ui.is_rect_visible(rect) {
        return;
    }
-    let radius = egui::CornerRadius::same(8);
+    let radius = egui::CornerRadius::same(theme::radius::MD);
    let painter = ui.painter();
    painter.rect_filled(rect, radius, theme::card_hover());
    // Asked for only once the row is on screen: a season of twenty-five is
@@ -746,7 +752,7 @@ fn still(
    let hover = ui.ctx().animate_bool_with_time(
        response.id,
        response.hovered() || response.has_focus(),
-        0.12,
+        theme::motion::HOVER,
    );
    if hover > 0.0 {
        painter.rect_filled(
@@ -17,7 +17,7 @@ const ERROR_SECONDS: f64 = 9.0;
 /// How many fit at once. A burst beyond that drops the oldest.
 const MOST: usize = 4;
 /// How long one takes to arrive and to leave.
-const FADE: f64 = 0.18;
+const FADE: f64 = theme::motion::FADE as f64;
 const WIDTH: f32 = 340.0;

 pub struct Toast {
@@ -98,7 +98,7 @@ impl Toasts {
            let age = now - toast.at;
            let arriving = (age / FADE).clamp(0.0, 1.0) as f32;
            let leaving = ((life - age) / FADE).clamp(0.0, 1.0) as f32;
-            let opacity = ease(arriving.min(leaving));
+            let opacity = theme::motion::ease_out(arriving.min(leaving));

            let area = egui::Area::new(egui::Id::new(("toast", toast.id)))
                .order(egui::Order::Foreground)
@@ -150,10 +150,6 @@ fn lifetime(error: bool) -> f64 {
    if error { ERROR_SECONDS } else { SECONDS }
 }

-fn ease(t: f32) -> f32 {
-    1.0 - (1.0 - t).powi(3)
-}
-
 /// Which of a toast's buttons was pressed.
 enum Pressed {
    Nothing,
@@ -172,7 +168,7 @@ fn card(ui: &mut egui::Ui, toast: &Toast) -> Pressed {
    egui::Frame::new()
        .fill(theme::surface())
        .stroke(Stroke::new(1.0, theme::card_hover()))
-        .corner_radius(CornerRadius::same(10))
+        .corner_radius(CornerRadius::same(theme::radius::LG))
        .inner_margin(egui::Margin {
            left: 16,
            right: 10,
@@ -211,7 +207,7 @@ fn card(ui: &mut egui::Ui, toast: &Toast) -> Pressed {
                    pressed = Pressed::Close;
                }
                if let Some((label, _)) = &toast.action {
-                    ui.add_space(4.0);
+                    ui.add_space(theme::space::XS);
                    if ui
                        .add(
                            egui::Button::new(
@@ -240,7 +236,8 @@ fn card(ui: &mut egui::Ui, toast: &Toast) -> Pressed {
                egui::pos2(frame.left() - 10.0, frame.top() - 4.0),
                egui::pos2(frame.left() - 7.0, frame.bottom() + 4.0),
            );
-            ui.painter().rect_filled(strip, CornerRadius::same(2), edge);
+            ui.painter()
+                .rect_filled(strip, CornerRadius::same(theme::radius::BAR), edge);
        });
    pressed
 }
@@ -56,7 +56,7 @@ pub fn full(
 ) {
    seek_bar(ui, playback, actions, 6.0);
    times(ui, playback, true);
-    ui.add_space(6.0);
+    ui.add_space(theme::space::S);

    ui.horizontal(|ui| {
        ui.set_min_height(ROW_HEIGHT_FULL);
@@ -65,7 +65,7 @@ pub fn full(
        // hand reaches for it.
        step_button(
            ui,
-            "⏮",
+            egui_phosphor::regular::SKIP_BACK,
            "Previous (P)",
            neighbours.previous,
            actions,
@@ -76,11 +76,18 @@ pub fn full(
        skip_button(ui, "−10s", "Back ten seconds (←)", -10.0, actions);
        play_pause(ui, playback, actions, 44.0);
        skip_button(ui, "+30s", "Forward thirty seconds (→)", 30.0, actions);
-        step_button(ui, "⏭", "Next (N)", neighbours.next, actions, |a| {
-            a.push(Action::PlayAdjacent(Adjacent::Next));
-        });
+        step_button(
+            ui,
+            egui_phosphor::regular::SKIP_FORWARD,
+            "Next (N)",
+            neighbours.next,
+            actions,
+            |a| {
+                a.push(Action::PlayAdjacent(Adjacent::Next));
+            },
+        );

-        ui.add_space(12.0);
+        ui.add_space(theme::space::L);
        if playback.seeking || playback.buffering || !playback.loaded {
            ui.add(egui::Spinner::new().size(16.0));
            ui.label(ui::muted(if playback.loaded && playback.seeking {
@@ -93,11 +100,11 @@ pub fn full(
        // Right cluster: everything that is a choice rather than a move.
        ui.with_layout(egui::Layout::right_to_left(egui::Align::Center), |ui| {
            track_menus(ui, playback, actions);
-            ui.add_space(8.0);
+            ui.add_space(theme::space::M);
            speed_menu(ui, playback, actions);
-            ui.add_space(8.0);
+            ui.add_space(theme::space::M);
            chapter_menu(ui, playback, actions);
-            ui.add_space(8.0);
+            ui.add_space(theme::space::M);
            volume(ui, playback, actions);
        });
    });
@@ -123,7 +130,7 @@ pub fn mini(
            Some(texture) => {
                let (rect, response) = ui.allocate_exact_size(MINI_PICTURE, Sense::click());
                let painter = ui.painter();
-                let radius = CornerRadius::same(6);
+                let radius = CornerRadius::same(theme::radius::SM);
                painter.rect_filled(rect, radius, Color32::BLACK);
                painter.add(
                    egui::epaint::RectShape::filled(rect, radius, Color32::WHITE).with_texture(
@@ -134,7 +141,7 @@ pub fn mini(
                let hover = ui.ctx().animate_bool_with_time(
                    response.id.with("hover"),
                    response.hovered(),
-                    0.12,
+                    theme::motion::HOVER,
                );
                if hover > 0.0 {
                    painter.rect_filled(
@@ -165,7 +172,7 @@ pub fn mini(
                    .add(
                        egui::Button::new(theme::Role::Label.rich("Back to video"))
                            .fill(theme::card_hover())
-                            .corner_radius(CornerRadius::same(8)),
+                            .corner_radius(CornerRadius::same(theme::radius::MD)),
                    )
                    .on_hover_text("Show the picture again")
                    .clicked()
@@ -174,7 +181,7 @@ pub fn mini(
                }
            }
        }
-        ui.add_space(10.0);
+        ui.add_space(theme::space::L);
        ui.vertical(|ui| {
            ui.horizontal(|ui| {
                ui.set_min_height(ROW_HEIGHT_MINI);
@@ -201,14 +208,21 @@ pub fn mini(
                    if ui.button("Stop").clicked() {
                        actions.push(Action::Player(Command::Stop));
                    }
-                    ui.add_space(6.0);
-                    step_button(ui, "⏭", "Next (N)", neighbours.next, actions, |a| {
-                        a.push(Action::PlayAdjacent(Adjacent::Next));
-                    });
+                    ui.add_space(theme::space::S);
+                    step_button(
+                        ui,
+                        egui_phosphor::regular::SKIP_FORWARD,
+                        "Next (N)",
+                        neighbours.next,
+                        actions,
+                        |a| {
+                            a.push(Action::PlayAdjacent(Adjacent::Next));
+                        },
+                    );
                    play_pause(ui, playback, actions, 34.0);
                    step_button(
                        ui,
-                        "⏮",
+                        egui_phosphor::regular::SKIP_BACK,
                        "Previous (P)",
                        neighbours.previous,
                        actions,
@@ -217,18 +231,18 @@ pub fn mini(
                        },
                    );

-                    ui.add_space(8.0);
+                    ui.add_space(theme::space::M);
                    track_menus(ui, playback, actions);
-                    ui.add_space(6.0);
+                    ui.add_space(theme::space::S);
                    volume(ui, playback, actions);

                    if playback.seeking || playback.buffering || !playback.loaded {
-                        ui.add_space(6.0);
+                        ui.add_space(theme::space::S);
                        ui.add(egui::Spinner::new().size(14.0));
                    }
                });
            });
-            ui.add_space(4.0);
+            ui.add_space(theme::space::XS);
            seek_bar(ui, playback, actions, 5.0);
            times(ui, playback, false);
        });
@@ -414,12 +428,14 @@ fn volume(ui: &mut egui::Ui, playback: &Playback, actions: &mut Vec<Action>) {
    }

    let icon = if playback.muted || playback.volume <= 0.0 {
-        "🔇"
+        egui_phosphor::regular::SPEAKER_SLASH
+    } else if playback.volume < 50.0 {
+        egui_phosphor::regular::SPEAKER_LOW
    } else {
-        "🔊"
+        egui_phosphor::regular::SPEAKER_HIGH
    };
    if ui
-        .button(icon)
+        .button(theme::Role::Subhead.rich(icon))
        .on_hover_text(format!("Mute (M) — {:.0}%", playback.volume))
        .clicked()
    {
@@ -553,11 +569,11 @@ fn seek_bar(ui: &mut egui::Ui, playback: &Playback, actions: &mut Vec<Action>, t

    let active = response.hovered() || response.dragged();
    // Grows rather than jumps when the pointer arrives.
-    let grow = ui
-        .ctx()
-        .animate_bool_with_time(response.id.with("grow"), active, 0.12);
+    let grow =
+        ui.ctx()
+            .animate_bool_with_time(response.id.with("grow"), active, theme::motion::HOVER);
    let track = Rect::from_center_size(rect.center(), Vec2::new(width, thickness + 3.0 * grow));
-    let radius = CornerRadius::same(3);
+    let radius = CornerRadius::same(theme::radius::BAR);
    let painter = ui.painter();
    // From the palette rather than a fixed grey: the same bar sits on the
    // video's dark scrim and on a light theme's transport strip.
@@ -676,6 +692,10 @@ fn bubble(ui: &egui::Ui, anchor: egui::Pos2, text: &str) {
    let screen = ui.ctx().content_rect();
    let left = (anchor.x - size.x / 2.0).clamp(screen.left() + 4.0, screen.right() - size.x - 4.0);
    let frame = Rect::from_min_size(egui::pos2(left, anchor.y - size.y), size);
-    painter.rect_filled(frame, CornerRadius::same(6), Color32::from_black_alpha(215));
+    painter.rect_filled(
+        frame,
+        CornerRadius::same(theme::radius::SM),
+        Color32::from_black_alpha(215),
+    );
    painter.galley(frame.min + Vec2::new(8.0, 4.0), galley, Color32::WHITE);
 }
@@ -40,8 +40,12 @@ pub fn toggle(ui: &mut egui::Ui, on: &mut bool, text: &str) -> egui::Response {

    if ui.is_rect_visible(rect) {
        let ctx = ui.ctx();
-        let t = ctx.animate_bool_with_time(response.id, *on, 0.14);
-        let hover = ctx.animate_bool_with_time(response.id.with("hover"), response.hovered(), 0.10);
+        let t = ctx.animate_bool_with_time(response.id, *on, theme::motion::STATE);
+        let hover = ctx.animate_bool_with_time(
+            response.id.with("hover"),
+            response.hovered(),
+            theme::motion::HOVER,
+        );
        let track = egui::Rect::from_min_size(
            egui::pos2(rect.left(), rect.center().y - TRACK.y / 2.0),
            TRACK,
@@ -96,8 +100,12 @@ pub fn watched_mark(ui: &mut egui::Ui, watched: bool) -> egui::Response {
    let (rect, response) = ui.allocate_exact_size(Vec2::splat(SIZE), Sense::click());
    if ui.is_rect_visible(rect) {
        let ctx = ui.ctx();
-        let t = ctx.animate_bool_with_time(response.id, watched, 0.14);
-        let hover = ctx.animate_bool_with_time(response.id.with("hover"), response.hovered(), 0.10);
+        let t = ctx.animate_bool_with_time(response.id, watched, theme::motion::STATE);
+        let hover = ctx.animate_bool_with_time(
+            response.id.with("hover"),
+            response.hovered(),
+            theme::motion::HOVER,
+        );
        let painter = ui.painter();
        let center = rect.center();
        let radius = SIZE / 2.0 - 1.0;
@@ -147,7 +155,7 @@ pub fn settings_group<R>(
    description: Option<&str>,
    add: impl FnOnce(&mut egui::Ui) -> R,
 ) -> R {
-    ui.add_space(4.0);
+    ui.add_space(theme::space::XS);
    ui.label(
        theme::Role::Subhead
            .rich(heading)
@@ -155,13 +163,13 @@ pub fn settings_group<R>(
            .color(theme::text()),
    );
    if let Some(description) = description {
-        ui.add_space(2.0);
+        ui.add_space(theme::space::XXS);
        ui.label(crate::ui::muted(description));
    }
-    ui.add_space(8.0);
+    ui.add_space(theme::space::M);
    let inner = egui::Frame::new()
        .fill(theme::card())
-        .corner_radius(CornerRadius::same(10))
+        .corner_radius(CornerRadius::same(theme::radius::LG))
        .inner_margin(egui::Margin::symmetric(16, 6))
        .show(ui, |ui| {
            ui.set_width(ui.available_width());
@@ -169,7 +177,7 @@ pub fn settings_group<R>(
            add(ui)
        })
        .inner;
-    ui.add_space(26.0);
+    ui.add_space(theme::space::XXL);
    inner
 }

@@ -192,7 +200,7 @@ pub fn settings_row<R>(
            Stroke::new(1.0, theme::card_hover()),
        );
    }
-    ui.add_space(10.0);
+    ui.add_space(theme::space::L);
    let inner = ui
        .horizontal(|ui| {
            ui.set_min_height(28.0);
@@ -209,7 +217,7 @@ pub fn settings_row<R>(
                .inner
        })
        .inner;
-    ui.add_space(10.0);
+    ui.add_space(theme::space::L);
    inner
 }

@@ -224,7 +232,7 @@ pub fn segmented<T: Copy + PartialEq>(
    let mut picked = None;
    egui::Frame::new()
        .fill(theme::card_hover())
-        .corner_radius(CornerRadius::same(8))
+        .corner_radius(CornerRadius::same(theme::radius::MD))
        .inner_margin(egui::Margin::same(3))
        .show(ui, |ui| {
            ui.spacing_mut().item_spacing.x = 2.0;
@@ -237,7 +245,7 @@ pub fn segmented<T: Copy + PartialEq>(
                        theme::text()
                    });
                    let button = egui::Button::new(text)
-                        .corner_radius(CornerRadius::same(6))
+                        .corner_radius(CornerRadius::same(theme::radius::SM))
                        .fill(if selected {
                            theme::accent()
                        } else {
@@ -273,9 +281,9 @@ pub fn download_button(ui: &mut egui::Ui, glyph: DownloadGlyph) -> egui::Respons
    if !ui.is_rect_visible(rect) {
        return response;
    }
-    let hover = ui
-        .ctx()
-        .animate_bool_with_time(response.id, response.hovered(), 0.10);
+    let hover =
+        ui.ctx()
+            .animate_bool_with_time(response.id, response.hovered(), theme::motion::HOVER);
    let painter = ui.painter();
    let c = rect.center();
    if hover > 0.0 {
@@ -352,7 +360,7 @@ pub fn download_button(ui: &mut egui::Ui, glyph: DownloadGlyph) -> egui::Respons
 pub fn chip(ui: &mut egui::Ui, text: &str) -> egui::Response {
    egui::Frame::new()
        .fill(theme::card_hover().gamma_multiply(0.8))
-        .corner_radius(CornerRadius::same(10))
+        .corner_radius(CornerRadius::same(theme::radius::LG))
        .inner_margin(egui::Margin::symmetric(9, 3))
        .show(ui, |ui| {
            ui.label(theme::Role::Caption.rich(text).color(theme::text()));
@@ -369,6 +369,26 @@ impl Library {
        titles
    }

+    /// Every episode that has been started or finished, most recently
+    /// touched first. The history page.
+    ///
+    /// An episode marked unwatched keeps a row with position zero, which is
+    /// "never played" for every purpose here, so it is left out.
+    pub fn history(&self) -> Vec<(&Title, &Episode)> {
+        let mut played: Vec<(&Title, &Episode)> = self
+            .titles
+            .iter()
+            .flat_map(|title| title.episodes().map(move |episode| (title, episode)))
+            .filter(|(_, episode)| {
+                episode
+                    .watch
+                    .is_some_and(|watch| watch.watched || watch.position_secs > 0.0)
+            })
+            .collect();
+        played.sort_by_key(|(_, episode)| std::cmp::Reverse(episode.last_played()));
+        played
+    }
+
    /// Substring match over the display name and every filename under it, so
    /// searching for a release group or an episode name finds its title.
    pub fn search(&self, query: &str) -> Vec<&Title> {
@@ -517,6 +537,41 @@ mod tests {
        }
    }

+    #[test]
+    fn history_is_every_played_episode_newest_first_across_titles() {
+        let watch_state = HashMap::from([
+            (
+                ("s".to_string(), "a".to_string()),
+                watch(600.0, 1400.0, false, 10),
+            ),
+            (
+                ("s".to_string(), "c".to_string()),
+                watch(1400.0, 1400.0, true, 30),
+            ),
+            // Marked unwatched again: a row at zero, which is not a play.
+            (
+                ("s".to_string(), "b".to_string()),
+                watch(0.0, 1400.0, false, 40),
+            ),
+        ]);
+        let library = Library::build(
+            vec![
+                node("s", "a", "Show - S01E01", Some(1), Some(1)),
+                node("s", "b", "Show - S01E02", Some(1), Some(2)),
+                node("s", "c", "Film", None, None),
+                node("s", "d", "Other - S01E01", Some(1), Some(1)),
+            ],
+            &watch_state,
+        );
+
+        let order: Vec<&str> = library
+            .history()
+            .iter()
+            .map(|(_, episode)| episode.node.link_id.as_str())
+            .collect();
+        assert_eq!(order, ["c", "a"]);
+    }
+
    #[test]
    fn groups_episodes_into_seasons() {
        let nodes = vec![
@@ -10,15 +10,23 @@

 use std::path::PathBuf;
 use std::sync::Arc;
+use std::time::Duration;

 use async_trait::async_trait;
 use proton_drive_rs::ProtonDrivePublicLinkClient;
+use proton_sdk::error::ProtonError;
 use proton_sdk::ids::NodeUid;

 use crate::block::{BlockMap, BlockSource, SharedBlocks};
 use crate::error::{Error, Result};
 use crate::source::RevisionOpener;

+/// How many times one block is fetched before its failure reaches the reader.
+const BLOCK_ATTEMPTS: u32 = 3;
+
+/// The pause before a block's second fetch, doubled before each one after.
+const BLOCK_RETRY_DELAY: Duration = Duration::from_millis(250);
+
 /// One open revision on a public link.
 pub struct RevisionBlocks {
    reader: proton_drive_rs::RevisionReader,
@@ -50,7 +58,7 @@ impl BlockSource for RevisionBlocks {
            )));
        };

-        let block = self.reader.read_at(start, size).await?;
+        let block = fetch_retrying(BLOCK_RETRY_DELAY, || self.reader.read_at(start, size)).await?;
        // A short block here is not a tail — the map says how long it is. It
        // means the revision changed underneath us or the block table lied, and
        // serving it would silently shift every later byte.
@@ -64,6 +72,38 @@ impl BlockSource for RevisionBlocks {
    }
 }

+/// Fetch a block, again if the failure is one a replay could get past.
+///
+/// The SDK retries a request that fails before its response starts, but not a
+/// block body cut off part way through: that error reaches us as it happened,
+/// and without this it stops playback or fails a download. Its keep-alive pings
+/// turn a silently dead connection into exactly that error, seconds in rather
+/// than at the storage timeout, and the next attempt goes out on a new
+/// connection. [`ProtonError::is_retriable`] decides what counts, so a
+/// permanent refusal still fails on the first attempt.
+async fn fetch_retrying<T, F, Fut>(
+    first_delay: Duration,
+    mut fetch: F,
+) -> std::result::Result<T, ProtonError>
+where
+    F: FnMut() -> Fut,
+    Fut: Future<Output = std::result::Result<T, ProtonError>>,
+{
+    let mut delay = first_delay;
+    let mut attempt = 1;
+    loop {
+        match fetch().await {
+            Err(error) if attempt < BLOCK_ATTEMPTS && error.is_retriable() => {
+                tracing::debug!(attempt, %error, "block fetch failed; fetching again");
+                tokio::time::sleep(delay).await;
+                delay *= 2;
+                attempt += 1;
+            }
+            result => return result,
+        }
+    }
+}
+
 /// A fully-downloaded revision. It uses the same block seam as Proton so mpv
 /// can seek normally without a second playback path.
 pub struct FileBlocks {
@@ -136,8 +176,60 @@ impl RevisionOpener for LibraryOpener {

 #[cfg(test)]
 mod tests {
+    use std::sync::atomic::{AtomicU32, Ordering};
+
+    use proton_sdk::api::ResponseCode;
+    use proton_sdk::error::ProtonApiError;
+
    use super::*;

+    fn api_error(http_status: u16) -> ProtonError {
+        ProtonError::Api(ProtonApiError {
+            code: ResponseCode::Unknown,
+            http_status,
+            message: String::new(),
+            details: None,
+        })
+    }
+
+    /// Run [`fetch_retrying`] over a fetch that fails with `failures` in turn and
+    /// then succeeds, returning the result and how many fetches it took.
+    async fn fetch_through(
+        failures: Vec<ProtonError>,
+    ) -> (std::result::Result<u8, ProtonError>, u32) {
+        let calls = AtomicU32::new(0);
+        let failures = std::sync::Mutex::new(failures.into_iter());
+        let result = fetch_retrying(Duration::ZERO, || {
+            calls.fetch_add(1, Ordering::Relaxed);
+            let next = failures.lock().unwrap().next();
+            async move { next.map_or(Ok(7), Err) }
+        })
+        .await;
+        (result, calls.into_inner())
+    }
+
+    #[tokio::test]
+    async fn a_block_that_fails_retriably_is_fetched_again() {
+        let (result, calls) = fetch_through(vec![api_error(503)]).await;
+        assert_eq!(result.expect("second fetch succeeds"), 7);
+        assert_eq!(calls, 2);
+    }
+
+    #[tokio::test]
+    async fn a_permanent_refusal_is_not_fetched_again() {
+        let (result, calls) = fetch_through(vec![api_error(403)]).await;
+        assert!(result.is_err());
+        assert_eq!(calls, 1);
+    }
+
+    #[tokio::test]
+    async fn a_block_that_keeps_failing_returns_its_last_error() {
+        let (result, calls) =
+            fetch_through((0..BLOCK_ATTEMPTS + 1).map(|_| api_error(503)).collect()).await;
+        assert!(result.is_err());
+        assert_eq!(calls, BLOCK_ATTEMPTS);
+    }
+
    /// The player hands its stream to mpv's demuxer thread, so everything from
    /// the opener down has to cross threads. A compile-time guard, because the
    /// failure mode is an unhelpful `FnOnce is not general enough` error deep in
@@ -46,7 +46,7 @@ Before submitting Android work, run the Rust workspace gate from the repository
 root, then:

 ```bash
-bash scripts/build-android.sh check          # ktlint, Android lint, host tests
+bash scripts/build-android.sh check          # ktlint, Android lint, host and screenshot tests
 bash scripts/android-acceptance.sh --release # the on-device matrix, minified APK
 ```

@@ -87,11 +87,13 @@ GitHub Actions expects the keystore itself as the base64-encoded
 Keep the keystore and passwords in a durable external secret manager; losing the
 key prevents users from upgrading an installed APK.

-Tagged workflows currently retain signed builds as workflow artifacts only.
-Publishing them to a GitHub release or Play remains disabled until the pinned
-libmpv build and resulting APK have passed the on-device playback matrix. The
-main release workflow publishes desktop artifacts only and fails if an APK or
-AAB enters its artifact set.
+A `v*` tag runs `release.yml`, which calls `android.yml` with
+`signed_release: true` and publishes the signed APK as
+`proton-stream-<version>-android.apk` next to the desktop artifacts, together
+with the `mpv-android-source-<rev>.tar.gz` corresponding source for the bundled
+libmpv. The AAB is kept as the `android-bundle` workflow artifact only; nothing
+uploads it to Play. A manual `android.yml` run with `signed_release` builds the
+same signed files without publishing them.

 ## Licensing and Native Playback

@@ -124,3 +124,5 @@ an edge case.
 | Provider artwork | cache dir, `posters/` | Yes — refetched by URL; stored scaled to 640 px |
 | Desktop-only settings | config dir, `desktop.json` | Defaults if missing — hardware decoding, cache budget; never overwritten when unparseable |
 | Window size | config dir, `window.json` | Defaults if missing or implausible |
+| Single-instance pipe key (Windows) | config dir, `instance.key` | Yes — regenerated if missing |
+| Notification app id (Windows) | `HKCU\Software\Classes\AppUserModelId\io.narl.proton-stream`, icon in cache dir | Yes — written again the first time a session notifies |
@@ -12,10 +12,11 @@ is the contract, and each side's copy is asserted against it by a test.
 |---|---|---|---|
 | Colour roles | `pstr_core::appearance::Palette` | `ui/theme/Theme.kt` `schemeOf` | `SchemeRolesTest` |
 | Type ramp | `pstr_app::theme::Role` | `ui/theme/Type.kt` | `TypeRampTest` |
-| Corner radius | `pstr-app` `ui/mod.rs` | `ui/theme/Shape.kt` | `TypeRampTest` |
+| Corner radius | `pstr_app::theme::radius` | `ui/theme/Shape.kt` | `TypeRampTest` |
 | Gradient rule | `Palette::resolve` | — (derived, see below) | `appearance.rs` tests |
 | Depth | `pstr_app::theme::{tile_shadow, bar_shadow}` | Material elevation | — |
-| Motion | `Context::animate_*` | Compose defaults | — |
+| Spacing | `pstr_app::theme::space` | Compose `dp` literals | — |
+| Motion | `pstr_app::theme::motion` | Compose defaults | — |

 ## Type

@@ -35,8 +36,16 @@ screen and not for anything in a library grid).
 | Caption | 12 | context rather than content: counts, sizes, errors under a field |
 | Micro | 11 | the smallest thing that stays legible — a badge over artwork |

-Weight and leading are each side's own: egui has one weight, and Compose derives
-line height as 1.35 × size rather than naming it nine more times.
+Weight and leading are each side's own. The desktop bundles Inter
+(`pstr-app/assets/fonts`, OFL) and sets Display, Title, Heading and Section in
+its semibold cut, which egui sees as a family of its own (`theme::semibold`);
+everything below Section is the regular cut. Compose derives line height as
+1.35 × size rather than naming it nine more times.
+
+Icons on the desktop come from the Phosphor icon font (`egui-phosphor`,
+regular weight), installed right behind Inter so an icon can sit inside an
+ordinary label. Do not use Unicode symbols such as ⏭ or 🔊 as icons: they come
+out of whichever fallback font has them, at that font's size and baseline.

 Both clients point their framework's *default* styles at the ramp — egui's five
 `TextStyle`s, Compose's fifteen — so a stock widget nobody restyled still lands
@@ -46,9 +55,19 @@ this module, and keep Material's sizes. Nothing in the app draws with them.

 ## Shape

-**Radius 8** for everything either client paints: cards, buttons, the tab pill,
-progress bars, dialogs. **4** for a badge over artwork. **16** for an Android
-bottom sheet, which has no desktop counterpart.
+**Radius 8** (`radius::MD`) for everything either client paints: cards,
+buttons, the tab pill. **4** (`BADGE`) for a badge over artwork. The desktop
+also has **3** (`BAR`) for progress bars and edge strips, **6** (`SM`) for a
+small control inside something else, and **12** (`LG`) for what floats — row
+cards, dialogs, toasts, the hero. **16** for an Android bottom sheet, which has
+no desktop counterpart.
+
+## Spacing
+
+The desktop spaces things from one scale, `theme::space`: 2, 4, 6, 8, 12, 16,
+24 (`XXS` to `XXL`). Use a step of the scale for a gap, not a literal. Sizes of
+things — a still, a button, a column — are not spacing and stay where they are
+defined.

 Two traps, both Android's:

@@ -96,9 +115,11 @@ page is a smudge on a near-white one. Android gets Material's elevation, which
 already adapts. Neither uses a tint to say "raised".

 Transitions on the desktop go through `Context::animate_*`: wall-clock driven,
-frame-rate independent, no state held by the caller. Durations in use are 0.05 s
-for a press, 0.10–0.12 s for a hover, 0.16 s for the tab pill's travel and 0.22 s
-for artwork arriving. Compose's defaults are close enough that nothing here
+frame-rate independent, no state held by the caller. Durations come from
+`theme::motion`: `PRESS` 0.05 s, `HOVER` 0.12 s, `STATE` 0.15 s (a switch, the
+tab pill's travel, a page change), `FADE` 0.18 s (player chrome, toasts) and
+`ARRIVE` 0.24 s (artwork over its placeholder). A hand-driven transition eases
+with `motion::ease_out`. Compose's defaults are close enough that nothing here
 overrides them.

 ## Desktop widgets
@@ -178,7 +178,7 @@ that needs a viewer's eyes is a scripted case rather than a paragraph in a
 checklist.

 ```bash
-bash scripts/build-android.sh check            # ktlint, Android lint, host tests
+bash scripts/build-android.sh check            # ktlint, Android lint, host and screenshot tests
 bash scripts/android-acceptance.sh --list      # what the device suite covers
 bash scripts/android-acceptance.sh             # debug APK, one attached device
 bash scripts/android-acceptance.sh --release   # the signed minified APK that ships
@@ -211,6 +211,19 @@ and checks the corner radius the desktop draws at. Both are lists of the *other*
 client's decisions, so a change to `pstr_app::theme::Role` that nobody carried
 across fails here rather than being noticed in a screenshot.

+**Screenshot tests** (`ScreenshotTest`, Roborazzi) draw each screen from fixed
+records — Library on a phone, a tablet, at font scale 1.5, while loading and
+empty; a title on a phone and a tablet; History on a phone and a tablet; Shares;
+the Settings index and its Playback and Storage pages; Downloads with a season
+saved and empty; and the library and a title again in Catppuccin Latte — and
+`check` compares them with the images in `app/src/test/screenshots`. A layout
+regression compiles and passes everything else; here it fails, and the review
+shows the changed image. After a deliberate change, `gradlew
+recordRoborazziDebug` rewrites the images and they are committed with it.
+Artwork loading is switched off (`LocalArtworkLoading`), so every tile shows
+its generated placeholder whatever the timing, and the palette is the shipped
+default except in the Latte captures.
+
 **Instrumentation tests** (`app/src/androidTest`) are the things with no host
 equivalent:

@@ -0,0 +1,140 @@
+import Foundation
+import Observation
+
+/// The app's one Rust engine and the screen state read from it.
+///
+/// Rust owns the Proton sessions, SQLite and every decrypted byte; this only
+/// asks it questions off the main thread and keeps the answers for SwiftUI.
+@MainActor
+@Observable
+final class AppModel {
+    let engine: AndroidEngine?
+    private(set) var startupError: String?
+
+    var titles: [TitleRecord] = []
+    var shares: [ShareRecord] = []
+    var search = ""
+    var crawling = false
+    var error: String?
+
+    init() {
+        do {
+            engine = try AndroidEngine(paths: Self.paths(), secrets: KeychainSecretStore())
+        } catch {
+            engine = nil
+            startupError = String(describing: error)
+        }
+    }
+
+    /// Application Support survives updates and is backed up, which is what
+    /// the watch history wants. The block cache goes under Caches, which iOS
+    /// may purge and never backs up.
+    private static func paths() throws -> AndroidPaths {
+        let files = FileManager.default
+        let support = try files.url(for: .applicationSupportDirectory, in: .userDomainMask, appropriateFor: nil, create: true)
+        let caches = try files.url(for: .cachesDirectory, in: .userDomainMask, appropriateFor: nil, create: true)
+        let config = support.appendingPathComponent("config", isDirectory: true)
+        let data = support.appendingPathComponent("data", isDirectory: true)
+        let cache = caches.appendingPathComponent("proton-stream", isDirectory: true)
+        for directory in [config, data, cache] {
+            try files.createDirectory(at: directory, withIntermediateDirectories: true)
+        }
+        return AndroidPaths(config: config.path, data: data.path, cache: cache.path)
+    }
+
+    struct NoEngine: Error, CustomStringConvertible {
+        var description: String { "the Rust engine did not start" }
+    }
+
+    /// Run a blocking bridge call off the main thread. The synchronous exports
+    /// take the catalog lock and touch SQLite, which a scroll must not wait on.
+    func run<T>(_ work: @escaping (AndroidEngine) throws -> T) async throws -> T {
+        guard let engine else { throw NoEngine() }
+        return try await Task.detached(priority: .userInitiated) { try work(engine) }.value
+    }
+
+    func report(_ error: Error) {
+        self.error = String(describing: error)
+    }
+
+    func reload() async {
+        let needle = search.trimmingCharacters(in: .whitespaces)
+        do {
+            let (titles, shares) = try await run { engine in
+                (try engine.library(search: needle.isEmpty ? nil : needle), try engine.shares())
+            }
+            self.titles = titles
+            self.shares = shares
+        } catch {
+            report(error)
+        }
+    }
+
+    func crawl(shareId: String? = nil) async {
+        guard let engine, !crawling else { return }
+        crawling = true
+        defer { crawling = false }
+        do {
+            try await engine.crawl(shareId: shareId)
+        } catch {
+            report(error)
+        }
+        await reload()
+    }
+
+    func addShare(name: String, url: String, password: String?) async {
+        do {
+            let share = try await run { try $0.addShare(name: name, url: url, customPassword: password) }
+            await crawl(shareId: share.id)
+        } catch {
+            report(error)
+        }
+    }
+
+    func repairShare(id: String, url: String, password: String?) async {
+        do {
+            _ = try await run { try $0.repairShare(shareId: id, url: url, customPassword: password) }
+            await crawl(shareId: id)
+        } catch {
+            report(error)
+        }
+    }
+
+    func removeShare(id: String) async {
+        do {
+            try await run { try $0.removeShare(shareId: id) }
+        } catch {
+            report(error)
+        }
+        await reload()
+    }
+
+    /// Marking seen puts the position at the duration where one is known, and
+    /// unwatching rewinds, as on desktop and Android.
+    func setWatched(_ episode: EpisodeRecord, _ watched: Bool) async {
+        do {
+            try await run { engine in
+                let duration = try engine.watchState(shareId: episode.shareId, linkId: episode.linkId)?.durationSecs
+                try engine.saveWatchState(
+                    shareId: episode.shareId, linkId: episode.linkId,
+                    positionSecs: watched ? duration ?? 0 : 0,
+                    durationSecs: duration, watched: watched
+                )
+            }
+        } catch {
+            report(error)
+        }
+        await reload()
+    }
+
+    /// Episodes started but not finished, most recent first.
+    var continueWatching: [(title: TitleRecord, episode: EpisodeRecord)] {
+        titles
+            .flatMap { title in
+                title.seasons.flatMap(\.episodes)
+                    .filter { $0.resumeAt != nil && !$0.watched }
+                    .map { (title: title, episode: $0) }
+            }
+            .sorted { $0.episode.lastPlayed > $1.episode.lastPlayed }
+    }
+}
@@ -0,0 +1,63 @@
+import Foundation
+import Security
+
+/// The share URL fragment, custom passwords and metadata API keys, held in the
+/// iOS Keychain. The counterpart of Android's `KeystoreSecretStore`.
+///
+/// Anything thrown from here reaches Rust as `UnexpectedUniFFICallbackError`,
+/// which the bridge turns into an ordinary `BridgeError` rather than a panic on
+/// whichever tokio worker asked (B18).
+final class KeychainSecretStore: AndroidSecretStore, @unchecked Sendable {
+    private let service = "io.narl.protonstream.secrets"
+
+    struct KeychainError: Error, CustomStringConvertible {
+        let status: OSStatus
+        let action: String
+        var description: String {
+            let message = SecCopyErrorMessageString(status, nil) as String? ?? "status \(status)"
+            return "keychain \(action): \(message)"
+        }
+    }
+
+    private func query(_ key: String) -> [String: Any] {
+        [
+            kSecClass as String: kSecClassGenericPassword,
+            kSecAttrService as String: service,
+            kSecAttrAccount as String: key,
+        ]
+    }
+
+    func set(key: String, value: String) throws {
+        let data = Data(value.utf8)
+        let update = SecItemUpdate(query(key) as CFDictionary, [kSecValueData as String: data] as CFDictionary)
+        if update == errSecSuccess { return }
+        guard update == errSecItemNotFound else { throw KeychainError(status: update, action: "update") }
+        var item = query(key)
+        item[kSecValueData as String] = data
+        // Readable by the refresh that runs while the phone is locked in a
+        // pocket, and never restored onto another device from a backup.
+        item[kSecAttrAccessible as String] = kSecAttrAccessibleAfterFirstUnlockThisDeviceOnly
+        let add = SecItemAdd(item as CFDictionary, nil)
+        guard add == errSecSuccess else { throw KeychainError(status: add, action: "add") }
+    }
+
+    func get(key: String) throws -> String? {
+        var item = query(key)
+        item[kSecReturnData as String] = true
+        item[kSecMatchLimit as String] = kSecMatchLimitOne
+        var result: CFTypeRef?
+        let status = SecItemCopyMatching(item as CFDictionary, &result)
+        if status == errSecItemNotFound { return nil }
+        guard status == errSecSuccess, let data = result as? Data else {
+            throw KeychainError(status: status, action: "read")
+        }
+        return String(data: data, encoding: .utf8)
+    }
+
+    func delete(key: String) throws {
+        let status = SecItemDelete(query(key) as CFDictionary)
+        guard status == errSecSuccess || status == errSecItemNotFound else {
+            throw KeychainError(status: status, action: "delete")
+        }
+    }
+}