feat(core,app,android,ios): My List, synced, and New badges with new-episode rows

My List is a list of titles to watch later, kept in my-list.json by
title key (pstr-core::mylist) and synced as one list/<key> register per
title, so an add or a removal on one device reaches every other. A list
file that will not parse is never written over: changing the list is
refused instead. It is a filter, a row on the library, a button on the
banner and the title page, and an entry in each tile's menu.

pstr-core::news reads node_first_seen against each share's first crawl,
so a newly added share does not badge its whole library. A title that
arrived in the last two weeks and was never played is New; a series
being watched counts the unwatched episodes that arrived after it was
last played ("3 new"). They fill the tile badge and the "New episodes"
and "Recently added" rows. shelves::home puts every row in one order
for all three apps, and a shelf tile of an airing show shows a
countdown ("Ep 8 · in 2 d").

The bridge gains TitleRecord.on_list and .badge, set_on_list, the
MyList filter, airing_countdown and SyncRecord.list_changed.

android/app/src/main/java/io/narl/protonstream/ui/AppViewModel.kt

@@ -591,7 +591,9 @@ class AppViewModel(context: Context, private val workManager: WorkManager) : Vie
             }
         }
         if (report.settingsChanged) AppearanceState.reload()
-        if (report.applied > 0u || report.titles > 0u || report.settingsChanged || report.sharesRemoved.isNotEmpty()) {
+        if (report.applied > 0u || report.titles > 0u || report.settingsChanged || report.listChanged ||
+            report.sharesRemoved.isNotEmpty()
+        ) {
             reloadNow()
         }
         if (report.sharesAdded.isNotEmpty()) {
@@ -625,7 +627,17 @@ class AppViewModel(context: Context, private val workManager: WorkManager) : Vie
      * 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) =
+    /** Put a title on My List, or take it off. */
+    fun setOnList(title: TitleRecord, on: Boolean) {
+        viewModelScope.launch {
+            runCatching {
+                withContext(Dispatchers.IO) { NativeRuntime.engine().setOnList(title.key, on) }
+            }.onFailure(::reportError)
+            reload()
+        }
+    }
+
+        fun setTitleWatched(title: TitleRecord, watched: Boolean) =
         markEpisodes(title.seasons.flatMap { it.episodes }, watched, title.displayName)
 
     /**

android/app/src/main/java/io/narl/protonstream/ui/Common.kt

@@ -18,6 +18,13 @@ import androidx.compose.foundation.layout.PaddingValues
 import androidx.compose.foundation.layout.RowScope
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.padding
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Add
+import androidx.compose.material.icons.filled.Check
+import androidx.compose.material3.FilledTonalIconButton
+import androidx.compose.material3.Icon
+import androidx.compose.ui.semantics.contentDescription
+import androidx.compose.ui.semantics.semantics
 import androidx.compose.material3.AlertDialog
 import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.MaterialTheme
@@ -323,3 +330,25 @@ internal fun SpecBadge(text: String) {
             .padding(horizontal = 5.dp, vertical = 1.dp),
     )
 }
+
+/**
+ * My List's button: a plus to put the title on it, a tick once it is, which
+ * takes it off again. [compact] is the icon alone, for the banner's row, where
+ * a third labelled button does not fit a phone.
+ */
+@Composable
+internal fun ListButton(onList: Boolean, onSet: (Boolean) -> Unit, compact: Boolean = false) {
+    val icon = if (onList) Icons.Default.Check else Icons.Default.Add
+    val label = if (onList) "Remove from My List" else "Add to My List"
+    if (compact) {
+        FilledTonalIconButton(onClick = { onSet(!onList) }, shape = MaterialTheme.shapes.small) {
+            Icon(icon, contentDescription = label)
+        }
+    } else {
+        TonalButton(onClick = { onSet(!onList) }, modifier = Modifier.semantics { contentDescription = label }) {
+            Icon(icon, contentDescription = null)
+            Spacer(Modifier.width(6.dp))
+            Text("My List")
+        }
+    }
+}

android/app/src/main/java/io/narl/protonstream/ui/LibraryScreen.kt

@@ -47,6 +47,7 @@ import io.narl.protonstream.settings.SettingsStore
 import io.narl.protonstream.ui.theme.QuietButton
 import java.time.LocalDate
 import androidx.compose.foundation.combinedClickable
+import androidx.compose.material.icons.filled.Add
 import androidx.compose.material.icons.filled.CheckCircle
 import androidx.compose.material.icons.filled.Download
 import androidx.compose.material.icons.filled.Edit
@@ -116,6 +117,7 @@ import uniffi.pstr_android.LibrarySort
 import uniffi.pstr_android.SeasonRecord
 import uniffi.pstr_android.TitleRecord
 import uniffi.pstr_android.TitleType
+import uniffi.pstr_android.airingCountdown
 
 /**
  * How many shows the continue-watching shelf holds.
@@ -145,6 +147,7 @@ internal fun LibraryFilter.label(): String = when (this) {
     LibraryFilter.WATCHING -> "Watching"
     LibraryFilter.UNWATCHED -> "Not started"
     LibraryFilter.DOWNLOADED -> "Downloaded"
+    LibraryFilter.MY_LIST -> "My List"
 }
 
 /** The offer of posters and synopses, and its two answers. */
@@ -190,6 +193,7 @@ internal fun LibraryScreen(
     onAddShare: () -> Unit = {},
     onOpenSettings: () -> Unit = {},
     onFilter: (LibraryFilter) -> Unit = {},
+    onSetOnList: (TitleRecord, Boolean) -> Unit = { _, _ -> },
 ) {
     val download = rememberDownload()
     val context = LocalContext.current
@@ -293,6 +297,7 @@ internal fun LibraryScreen(
                         },
                         featured = if (overBanner) featured else emptyList(),
                         grid = grid,
+                        onSetOnList = onSetOnList,
                     )
                 }
             }
@@ -307,6 +312,10 @@ internal fun LibraryScreen(
                 onResume(title, nextUpIndex(playlist, title.continueIndex))
             }
             MenuRow(Icons.Default.Info, "Open") { onTitle(title) }
+            MenuRow(
+                if (title.onList) Icons.Default.Check else Icons.Default.Add,
+                if (title.onList) "Remove from My List" else "Add to My List",
+            ) { onSetOnList(title, !title.onList) }
             MenuRow(Icons.Default.Download, "Download all") { download(playlist, title.displayName) }
             MenuRow(
                 if (allWatched) Icons.Outlined.CheckCircle else Icons.Default.CheckCircle,
@@ -493,6 +502,7 @@ private fun LibraryGrid(
     metadataOffer: MetadataOffer? = null,
     featured: List<TitleRecord> = emptyList(),
     grid: LazyGridState = rememberLazyGridState(),
+    onSetOnList: (TitleRecord, Boolean) -> Unit = { _, _ -> },
 ) {
     // The arrangement names titles by key; before it has arrived, the titles
     // as they came are the grid.
@@ -525,6 +535,7 @@ private fun LibraryGrid(
                     resumable,
                     onPlay = onResume,
                     onOpen = onTitle,
+                    onSetOnList = onSetOnList,
                     modifier = Modifier.bleed(16.dp),
                 )
             }
@@ -574,6 +585,9 @@ private fun LibraryGrid(
                                     onLongClick = { onTitleMenu(title) },
                                     modifier = Modifier.width(SHELF_TILE_WIDTH),
                                     shared = false,
+                                    // On a shelf, an airing show says when its
+                                    // next episode is out.
+                                    badge = title.badge ?: title.countdown(),
                                 )
                             }
                         }
@@ -729,6 +743,7 @@ private fun FeaturedBanner(
     resumable: List<Resumable>,
     onPlay: (TitleRecord, Int) -> Unit,
     onOpen: (TitleRecord) -> Unit,
+    onSetOnList: (TitleRecord, Boolean) -> Unit,
     modifier: Modifier = Modifier,
 ) {
     val pager = rememberPagerState { titles.size }
@@ -750,6 +765,7 @@ private fun FeaturedBanner(
                 resumable.firstOrNull { it.title.key == title.key },
                 onPlay = { onPlay(title, it) },
                 onOpen = { onOpen(title) },
+                onSetOnList = { onSetOnList(title, it) },
             )
         }
         if (titles.size > 1) {
@@ -780,7 +796,13 @@ private fun FeaturedBanner(
 
 /** One title on the banner: its art, its veil, and what it is, from the bottom up. */
 @Composable
-private fun FeaturedPage(title: TitleRecord, resume: Resumable?, onPlay: (Int) -> Unit, onOpen: () -> Unit) {
+private fun FeaturedPage(
+    title: TitleRecord,
+    resume: Resumable?,
+    onPlay: (Int) -> Unit,
+    onOpen: () -> Unit,
+    onSetOnList: (Boolean) -> Unit,
+) {
     val playlist = remember(title) { title.seasons.flatMap(SeasonRecord::episodes) }
     var mood by remember(title.key) { mutableStateOf<Color?>(null) }
     val background = MaterialTheme.colorScheme.background
@@ -846,6 +868,7 @@ private fun FeaturedPage(title: TitleRecord, resume: Resumable?, onPlay: (Int) -
                     Spacer(Modifier.width(6.dp))
                     Text("More info")
                 }
+                ListButton(title.onList, onSetOnList, compact = true)
             }
             val episode = resume?.episode
             val progress = episode?.progress?.takeIf { episode.resumeAt != null }
@@ -943,6 +966,7 @@ private fun PosterTile(
     modifier: Modifier = Modifier,
     folded: Int = 0,
     shared: Boolean = true,
+    badge: String? = title.badge,
 ) {
     Column(
         modifier
@@ -976,6 +1000,20 @@ private fun PosterTile(
                         .semantics { contentDescription = "and $folded more" },
                 )
             }
+            if (badge != null) {
+                Text(
+                    badge,
+                    style = MaterialTheme.typography.labelSmall,
+                    fontWeight = FontWeight.SemiBold,
+                    color = MaterialTheme.colorScheme.onPrimary,
+                    modifier = Modifier
+                        .align(Alignment.TopStart)
+                        .padding(6.dp)
+                        .clip(MaterialTheme.shapes.small)
+                        .background(MaterialTheme.colorScheme.primary)
+                        .padding(horizontal = 6.dp, vertical = 2.dp),
+                )
+            }
         }
         Spacer(Modifier.height(6.dp))
         Text(
@@ -1017,3 +1055,10 @@ private fun EpisodeRecord.timeLeft(): String? {
     val minutes = ((at / fraction - at) / 60).toInt()
     return if (minutes < 1) "under a minute left" else "$minutes min left"
 }
+
+/** `Ep 8 · in 2 d` for a show whose next episode is still to air. */
+internal fun TitleRecord.countdown(now: Long = System.currentTimeMillis() / 1000): String? {
+    val at = nextAiringAt?.takeIf { it > now } ?: return null
+    val episode = nextEpisode ?: return null
+    return airingCountdown(episode, at, now)
+}

android/app/src/main/java/io/narl/protonstream/ui/ProtonStreamApp.kt

@@ -234,6 +234,7 @@ fun ProtonStreamApp(
                                 },
                                 onOpenSettings = { destination = Destination.Settings },
                                 onFilter = model::filter,
+                                onSetOnList = model::setOnList,
                                 )
                         }
                         val titlePane = @Composable { selected: TitleRecord ->
@@ -255,6 +256,7 @@ fun ProtonStreamApp(
                                     state.titles.firstOrNull { it.key == key }
                                 },
                                 onOpenTitle = { selectedTitleKey = it.key },
+                                onSetOnList = model::setOnList,
                                 )
                         }
                         if (maxWidth >= TWO_PANE_WIDTH) {

android/app/src/main/java/io/narl/protonstream/ui/TitleScreen.kt

@@ -50,6 +50,9 @@ import androidx.compose.material.icons.filled.CheckCircle
 import androidx.compose.material.icons.outlined.CheckCircle
 import androidx.compose.material.icons.filled.DoneAll
 import androidx.compose.material.icons.filled.Download
+import androidx.compose.ui.semantics.stateDescription
+import androidx.compose.ui.semantics.semantics
+import androidx.compose.material.icons.filled.Add
 import androidx.compose.material.icons.filled.Edit
 import androidx.compose.material.icons.filled.RemoveDone
 import androidx.compose.material.icons.filled.Pause
@@ -119,6 +122,7 @@ internal fun TitleScreen(
     /** Every title of its franchise, in release order, this one included. */
     franchise: List<TitleRecord> = emptyList(),
     onOpenTitle: (TitleRecord) -> Unit = {},
+    onSetOnList: (TitleRecord, Boolean) -> Unit = { _, _ -> },
 ) {
     val context = LocalContext.current
     val download = rememberDownload()
@@ -311,6 +315,13 @@ internal fun TitleScreen(
                     // three button styles used to wrap over three lines and bury
                     // the episodes under them.
                     Row(Modifier.fillMaxWidth().padding(top = 12.dp)) {
+                        TitleAction(
+                            if (title.onList) Icons.Default.Check else Icons.Default.Add,
+                            "My List",
+                            Modifier.weight(1f).semantics {
+                                stateDescription = if (title.onList) "On My List" else "Not on My List"
+                            },
+                        ) { onSetOnList(title, !title.onList) }
                         // Only where it would do something different: an unstarted
                         // show already starts at the beginning.
                         if (upNext?.resumeAt != null || title.watchedCount > 0uL) {

crates/pstr-android/src/lib.rs

@@ -246,6 +246,9 @@ pub struct SyncRecord {
     pub settings_changed: bool,
     /// Hand-picked matches and per-show track choices taken.
     pub titles: u32,
+    /// Whether My List changed: reload the library.
+    #[uniffi(default = false)]
+    pub list_changed: bool,
 }
 
 #[derive(Debug, Clone, Copy, PartialEq, Eq, uniffi::Enum)]
@@ -357,6 +360,7 @@ pub enum TitleNamesChoice {
 #[derive(Debug, Clone, Copy, PartialEq, Eq, uniffi::Enum)]
 pub enum LibraryFilter {
     All,
+    MyList,
     Series,
     Films,
     Watching,
@@ -478,6 +482,13 @@ pub fn picture_mood(pixels: Vec<u32>) -> Option<u32> {
 /// The page colour `background` tinted by a picture's [`picture_mood`], for
 /// the veils over that picture. All `0xAARRGGBB`; see
 /// `pstr_core::appearance::mood_veil`.
+/// What an airing show's tile says about its next episode, `Ep 8 · in 2 d`;
+/// see `pstr_core::news::countdown`.
+#[uniffi::export]
+pub fn airing_countdown(episode: u32, at: i64, now: i64) -> String {
+    pstr_core::news::countdown(episode, at, now)
+}
+
 #[uniffi::export]
 pub fn mood_veil(background: u32, mood: u32, light: bool) -> u32 {
     let rgb = |argb: u32| {
@@ -624,6 +635,12 @@ pub struct TitleRecord {
     /// shared `TitleDetails::status_label`.
     #[uniffi(default = None)]
     pub status: Option<String>,
+    /// On My List.
+    #[uniffi(default = false)]
+    pub on_list: bool,
+    /// `New`, or `3 new` on a show being watched; see `pstr_core::news`.
+    #[uniffi(default = None)]
+    pub badge: Option<String>,
 }
 
 /// Playback preferences that outlive one file, one title and one launch.
@@ -1328,6 +1345,7 @@ impl AndroidEngine {
                         shares_removed: profile.shares_removed,
                         settings_changed: profile.settings,
                         titles: u32::try_from(profile.titles).unwrap_or(u32::MAX),
+                        list_changed: profile.list,
                     }))
                 }
                 Err(error) if error.is_signed_out() => {
@@ -1655,11 +1673,15 @@ impl AndroidEngine {
                 pstr_core::browse::search(&cached.library, &cached.metadata, &query)
                     .into_iter()
                     .filter(|title| {
-                        filter.admits(title, |node| {
-                            cached
-                                .offline
-                                .contains(&(node.share_id.clone(), node.link_id.clone()))
-                        })
+                        filter.admits(
+                            title,
+                            |node| {
+                                cached
+                                    .offline
+                                    .contains(&(node.share_id.clone(), node.link_id.clone()))
+                            },
+                            &cached.list,
+                        )
                     })
                     .collect();
             let tiles = pstr_core::browse::arrange(
@@ -1675,13 +1697,20 @@ impl AndroidEngine {
             // Shelves are the whole library's, and only when it is shown
             // whole.
             let shelves = if query.trim().is_empty() && filter == Filter::All {
-                pstr_core::shelves::pick(&cached.library.titles, &cached.metadata, SHELVES)
-                    .into_iter()
-                    .map(|shelf| ShelfRecord {
-                        label: shelf.label,
-                        keys: shelf.keys,
-                    })
-                    .collect()
+                pstr_core::shelves::home(
+                    &cached.library.titles,
+                    &cached.metadata,
+                    &cached.list,
+                    &cached.first_seen,
+                    now(),
+                    SHELVES,
+                )
+                .into_iter()
+                .map(|shelf| ShelfRecord {
+                    label: shelf.label,
+                    keys: shelf.keys,
+                })
+                .collect()
             } else {
                 Vec::new()
             };
@@ -1698,6 +1727,18 @@ impl AndroidEngine {
         })
     }
 
+    /// Put a title on My List or take it off. Refused when the list on disk
+    /// would not parse, rather than writing an empty one over it.
+    pub fn set_on_list(&self, key: String, on: bool) -> Result<(), BridgeError> {
+        let mut list = pstr_core::mylist::load(&self.dirs).map_err(BridgeError::from_display)?;
+        if on {
+            list.add(&key, now());
+        } else {
+            list.remove(&key);
+        }
+        pstr_core::mylist::save(&self.dirs, &list).map_err(BridgeError::from_display)
+    }
+
     pub fn metadata_settings(&self) -> Result<MetadataSettingsRecord, BridgeError> {
         let config = pstr_meta::settings::load(&self.dirs).map_err(BridgeError::from_display)?;
         let ready = !config.provider.needs_api_key()
@@ -2480,11 +2521,15 @@ impl AndroidEngine {
         let names = pstr_core::appearance::load(&self.dirs)
             .unwrap_or_default()
             .names;
+        // Read each time like the appearance: it is one small file, and the
+        // phone's list changes without the catalog being written.
+        let list = pstr_core::mylist::load(&self.dirs).unwrap_or_default();
         let catalog = self.catalog.lock();
         let writes = catalog.writes();
         if let Some(cached) = self.library_cache.lock().as_ref()
             && cached.writes == writes
             && cached.names == names
+            && cached.list == list
         {
             return Ok(read(cached));
         }
@@ -2518,6 +2563,7 @@ impl AndroidEngine {
             })
             .collect();
         let now = now();
+        let badges = pstr_core::news::badges(&library.titles, &first_seen, now);
         let titles: Vec<TitleRecord> = library
             .titles
             .iter()
@@ -2531,6 +2577,8 @@ impl AndroidEngine {
                 record.display_name =
                     pstr_core::browse::display_name(title, &metadata, names).to_owned();
                 record.franchise = franchises.get(&title.key).cloned().unwrap_or_default();
+                record.on_list = list.contains(&title.key);
+                record.badge = badges.get(&title.key).map(|badge| badge.label());
                 if let Some(details) = metadata
                     .get(&title.key)
                     .and_then(|record| record.metadata.as_ref())
@@ -2547,6 +2595,7 @@ impl AndroidEngine {
         let cached = CachedLibrary {
             writes,
             names,
+            list,
             library,
             metadata,
             added,
@@ -3425,6 +3474,7 @@ fn normalized_language(language: Option<String>) -> Option<String> {
 struct CachedLibrary {
     writes: u64,
     names: TitleNames,
+    list: pstr_core::mylist::MyList,
     library: Library,
     metadata: HashMap<String, MetadataRecord>,
     /// When each title last gained a file.
@@ -3535,6 +3585,7 @@ fn filter_choice(filter: LibraryFilter) -> Filter {
         LibraryFilter::Watching => Filter::Watching,
         LibraryFilter::Unwatched => Filter::Unwatched,
         LibraryFilter::Downloaded => Filter::Downloaded,
+        LibraryFilter::MyList => Filter::MyList,
     }
 }
 
@@ -3693,6 +3744,8 @@ fn title_record(
             .map(str::to_owned),
         next_episode: None,
         next_airing_at: None,
+        on_list: false,
+        badge: None,
         franchise: Vec::new(),
         logo_url: metadata.and_then(|found| found.logo_url.clone()),
         runtime: details.and_then(|details| details.runtime),
@@ -4345,6 +4398,36 @@ mod tests {
         let titles = engine.library(Some("frieren".into())).expect("library");
         assert_eq!(titles[0].display_name, "Sousou no Frieren");
 
+        // My List: the record says so straight away, the filter narrows to
+        // it, and it is a row above the grid.
+        engine
+            .set_on_list("sousou no frieren".into(), true)
+            .expect("list");
+        let titles = engine.library(Some("frieren".into())).expect("library");
+        assert!(titles[0].on_list);
+        let listed = engine
+            .arrangement(
+                None,
+                super::LibraryFilter::MyList,
+                super::LibrarySort::Name,
+                false,
+            )
+            .expect("arrange");
+        assert_eq!(listed.tiles.len(), 1);
+        let whole = engine
+            .arrangement(
+                None,
+                super::LibraryFilter::All,
+                super::LibrarySort::Name,
+                true,
+            )
+            .expect("arrange");
+        assert_eq!(whole.shelves[0].label, "My List");
+        engine
+            .set_on_list("sousou no frieren".into(), false)
+            .expect("list");
+        assert!(!engine.library(None).expect("library")[0].on_list);
+
         let _ = std::fs::remove_dir_all(root);
     }
 

crates/pstr-app/src/app.rs

@@ -13,6 +13,7 @@ use pstr_core::appearance::Appearance;
 use pstr_core::config::AppDirs;
 use pstr_core::library::Library;
 use pstr_core::metadata::{EpisodeGuide, MetadataConfig, MetadataRecord, TitleNames};
+use pstr_core::mylist::MyList;
 
 use crate::engine::{
     AccountStatus, DownloadItem, DownloadKey, Engine, Event, ImageCache, describe_failures,
@@ -293,6 +294,11 @@ pub enum Action {
     SetShelf(Filter, Sort),
     /// Fold each franchise into one tile, or show every title.
     SetGrouped(bool),
+    /// Put a title on My List, or take it off.
+    SetOnList {
+        key: String,
+        on: bool,
+    },
     /// Open or close the list of keyboard shortcuts.
     ToggleShortcuts,
     /// One page back: a title to the library, the library to nowhere.
@@ -410,6 +416,10 @@ pub struct LibraryView {
     pub history: Vec<ui::history::Entry>,
     /// The "Continue watching" shelf, most recent first, as indices.
     pub resumable: Vec<usize>,
+    /// What each tile says about what arrived — `New`, `3 new` — by key.
+    pub badges: HashMap<String, String>,
+    /// The keys on My List.
+    pub listed: std::collections::HashSet<String>,
     /// The library or what is known about it changed under the lists.
     stale: bool,
     /// Only watch state changed: the shelves and franchises still stand,
@@ -445,6 +455,8 @@ impl Default for LibraryView {
             shelves: Vec::new(),
             history: Vec::new(),
             resumable: Vec::new(),
+            badges: HashMap::new(),
+            listed: std::collections::HashSet::new(),
             stale: false,
             progressed: false,
         }
@@ -462,6 +474,10 @@ pub struct ViewInputs<'a> {
     pub added: &'a HashMap<String, i64>,
     /// The files kept on this computer, for the Downloaded filter.
     pub offline: &'a std::collections::HashSet<DownloadKey>,
+    pub list: &'a MyList,
+    /// When each file first appeared in a crawl, for what is new.
+    pub first_seen: &'a HashMap<(String, String), i64>,
+    pub now: i64,
 }
 
 /// How many shelves the library shows above the grid.
@@ -481,6 +497,7 @@ impl LibraryView {
         if !self.stale && self.progressed && unchanged && !watch_shapes_grid {
             self.history = ui::history::entries(library);
             self.resumable = Self::resumable(library);
+            self.badges = Self::badges(library, &inputs);
             self.progressed = false;
             return;
         }
@@ -508,28 +525,44 @@ impl LibraryView {
                 .enumerate()
                 .map(|(at, title)| (title.key.as_str(), at))
                 .collect();
-            self.shelves = pstr_core::shelves::pick(&library.titles, metadata, SHELVES)
-                .into_iter()
-                .map(|shelf| {
-                    let indices = shelf
-                        .keys
-                        .iter()
-                        .filter_map(|key| index.get(key.as_str()).copied())
-                        .collect();
-                    (shelf.label, indices)
-                })
+            self.listed = inputs
+                .list
+                .entries()
+                .map(|(key, _)| key.to_owned())
                 .collect();
+            self.shelves = pstr_core::shelves::home(
+                &library.titles,
+                metadata,
+                inputs.list,
+                inputs.first_seen,
+                inputs.now,
+                SHELVES,
+            )
+            .into_iter()
+            .map(|shelf| {
+                let indices = shelf
+                    .keys
+                    .iter()
+                    .filter_map(|key| index.get(key.as_str()).copied())
+                    .collect();
+                (shelf.label, indices)
+            })
+            .collect();
         }
 
         let titles: Vec<&Title> = pstr_core::browse::search(library, metadata, inputs.query)
             .into_iter()
             .filter(|title| {
-                self.filter.admits(title, |node| {
-                    inputs.offline.contains(&DownloadKey {
-                        share_id: node.share_id.clone(),
-                        link_id: node.link_id.clone(),
-                    })
-                })
+                self.filter.admits(
+                    title,
+                    |node| {
+                        inputs.offline.contains(&DownloadKey {
+                            share_id: node.share_id.clone(),
+                            link_id: node.link_id.clone(),
+                        })
+                    },
+                    inputs.list,
+                )
             })
             .collect();
         let tiles = pstr_core::browse::arrange(
@@ -564,12 +597,20 @@ impl LibraryView {
         if self.stale || self.progressed {
             self.history = ui::history::entries(library);
             self.resumable = Self::resumable(library);
+            self.badges = Self::badges(library, &inputs);
         }
         self.query = inputs.query.to_owned();
         self.stale = false;
         self.progressed = false;
     }
 
+    fn badges(library: &Library, inputs: &ViewInputs<'_>) -> HashMap<String, String> {
+        pstr_core::news::badges(&library.titles, inputs.first_seen, inputs.now)
+            .into_iter()
+            .map(|(key, badge)| (key, badge.label()))
+            .collect()
+    }
+
     /// The "Continue watching" shelf, as indices into the library.
     fn resumable(library: &Library) -> Vec<usize> {
         library
@@ -628,6 +669,9 @@ pub struct App {
     pub metadata: HashMap<String, MetadataRecord>,
     /// When each title last gained a file, by key — for "Recently added".
     pub added: HashMap<String, i64>,
+    /// When each file first appeared in a crawl, for the New badges.
+    first_seen: HashMap<(String, String), i64>,
+    my_list: MyList,
     /// What they said about the episodes under those titles.
     pub episodes: HashMap<String, EpisodeGuide>,
     pub settings: MetadataConfig,
@@ -723,6 +767,7 @@ impl App {
         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())?;
+        let my_list = engine.my_list();
         theme::install_fonts(&cc.egui_ctx);
         theme::apply(&cc.egui_ctx, engine.appearance());
         cc.egui_ctx.set_zoom_factor(engine.desktop_prefs().zoom());
@@ -752,6 +797,8 @@ impl App {
             posters: ImageCache::default(),
             metadata: HashMap::new(),
             added: HashMap::new(),
+            first_seen: HashMap::new(),
+            my_list,
             episodes: HashMap::new(),
             settings,
             api_key: String::new(),
@@ -886,6 +933,11 @@ impl App {
                     self.connecting = false;
                     self.note(ctx, format!("could not open the shares: {error}"), true);
                 }
+                Event::FirstSeen(first_seen) => self.first_seen = first_seen,
+                Event::MyList(list) => {
+                    self.my_list = list;
+                    self.view.stale = true;
+                }
                 Event::LibraryLoaded(library, added) => {
                     self.library = library;
                     self.added = added;
@@ -1685,6 +1737,10 @@ impl App {
                 self.view.grouped = grouped;
                 self.remember_arrangement();
             }
+            Action::SetOnList { key, on } => {
+                self.my_list = self.engine.set_on_list(&key, on);
+                self.view.stale = true;
+            }
             Action::Back => match self.page {
                 Page::Title(_) => self.page = Page::Library,
                 // Back out of a search before out of anything else: it is the
@@ -2391,6 +2447,9 @@ impl eframe::App for App {
                     names: self.engine.appearance().names,
                     added: &self.added,
                     offline: &self.offline_files,
+                    list: &self.my_list,
+                    first_seen: &self.first_seen,
+                    now: crate::engine::unix_now(),
                 },
             );
 
@@ -2519,7 +2578,10 @@ impl eframe::App for App {
                             &mut art,
                             library,
                             key,
-                            view.franchises.get(key.as_str()).map(Vec::as_slice),
+                            ui::title::Context {
+                                franchise: view.franchises.get(key.as_str()).map(Vec::as_slice),
+                                on_list: view.listed.contains(key.as_str()),
+                            },
                             ui::title::OfflineView {
                                 downloads,
                                 files: offline_files,

crates/pstr-app/src/engine.rs

@@ -33,6 +33,7 @@ use pstr_core::catalog::{
 use pstr_core::config::AppDirs;
 use pstr_core::library::{Library, Title, TitleKind};
 use pstr_core::metadata::{EpisodeGuide, MetadataConfig, MetadataRecord, ProviderId};
+use pstr_core::mylist::MyList;
 use pstr_core::prefs::PlaybackPrefs;
 use pstr_core::profile::ProfileChanges;
 use pstr_core::proton_drive_rs::ThumbnailType;
@@ -221,6 +222,12 @@ pub enum Event {
     /// The catalog was re-read: the library, and when each title last
     /// gained a file.
     LibraryLoaded(Library, HashMap<String, i64>),
+    /// When each file first appeared in a crawl, for the New badges; see
+    /// [`pstr_core::catalog::Catalog::first_seen`]. Sent just before
+    /// [`Event::LibraryLoaded`].
+    FirstSeen(HashMap<(String, String), i64>),
+    /// My List changed on another device.
+    MyList(MyList),
     /// A crawl finished for one share.
     Crawled {
         share_id: String,
@@ -415,6 +422,9 @@ pub struct Engine {
     /// Which theme the window wears. Kept beside the playback preferences for
     /// the same reason: it is read from the UI and written to disk off it.
     appearance: Arc<Mutex<Appearance>>,
+    /// My List, read once at launch. `None` when the file would not parse: it
+    /// is then never written over, and changing the list is refused.
+    my_list: Arc<Mutex<Option<MyList>>>,
     /// Preloaded so clicking Play never runs SQLite on egui's thread.
     track_prefs: Arc<Mutex<HashMap<String, TitleTrackPrefs>>>,
     downloads: Arc<Mutex<Downloads>>,
@@ -522,6 +532,10 @@ impl Engine {
             Appearance::default()
         });
 
+        let my_list = pstr_core::mylist::load(&dirs)
+            .inspect_err(|error| tracing::warn!("read My List: {error}"))
+            .ok();
+
         // The TMDB key, which every provider looks for, comes 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
@@ -560,6 +574,7 @@ impl Engine {
             enrichment_settled: Arc::new(tokio::sync::watch::channel(!deferred).0),
             prefs: Arc::new(Mutex::new(prefs)),
             appearance: Arc::new(Mutex::new(appearance)),
+            my_list: Arc::new(Mutex::new(my_list)),
             track_prefs: Arc::new(Mutex::new(track_prefs)),
             downloads: Arc::new(Mutex::new(Downloads::default())),
             download_permits: Arc::new(tokio::sync::Semaphore::new(DOWNLOAD_CONCURRENCY)),
@@ -624,6 +639,43 @@ impl Engine {
         *self.appearance.lock()
     }
 
+    /// My List as it stands.
+    pub fn my_list(&self) -> MyList {
+        self.my_list.lock().clone().unwrap_or_default()
+    }
+
+    /// Put a title on My List or take it off, write the list, and return it
+    /// as it now is.
+    pub fn set_on_list(&self, key: &str, on: bool) -> MyList {
+        let mut guard = self.my_list.lock();
+        let Some(list) = guard.as_mut() else {
+            self.emit(Event::Error(
+                "My List could not be read, so it was left as it is.".to_owned(),
+            ));
+            return MyList::default();
+        };
+        if on {
+            list.add(key, unix_now());
+        } else {
+            list.remove(key);
+        }
+        let saved = list.clone();
+        drop(guard);
+        let engine = self.clone();
+        self.runtime.spawn_blocking(move || {
+            // Whatever the list is by now, under the lock: two clicks in a row
+            // must not land on disk in the wrong order.
+            let guard = engine.my_list.lock();
+            if let Some(list) = guard.as_ref()
+                && let Err(error) = pstr_core::mylist::save(&engine.dirs, list)
+            {
+                drop(guard);
+                engine.fail("save My List", error);
+            }
+        });
+        saved
+    }
+
     /// Change the theme and write it.
     ///
     /// Always committed, unlike the volume: a theme is picked with a click and
@@ -1024,6 +1076,15 @@ impl Engine {
                 Err(error) => tracing::warn!("reread the metadata settings: {error}"),
             }
         }
+        if profile.list {
+            match pstr_core::mylist::load(&self.dirs) {
+                Ok(list) => {
+                    *self.my_list.lock() = Some(list.clone());
+                    self.emit(Event::MyList(list));
+                }
+                Err(error) => tracing::warn!("reread My List: {error}"),
+            }
+        }
         if profile.titles > 0 {
             match self.catalog.lock().all_title_track_prefs() {
                 Ok(prefs) => *self.track_prefs.lock() = prefs,
@@ -1289,6 +1350,7 @@ impl Engine {
                     let library = Library::build(files, &watch);
                     let targets = download_targets(&library);
                     let added = library.added_at(&first_seen);
+                    engine.emit(Event::FirstSeen(first_seen));
                     engine.emit(Event::LibraryLoaded(library, added));
                     engine.refresh_offline(Some(targets));
                 }

crates/pstr-app/src/ui/library.rs

@@ -1,5 +1,7 @@
 //! The library page: what to watch, as a wall of stills.
 
+use std::collections::HashSet;
+
 use pstr_core::appearance::Tiles;
 use pstr_core::library::{Library, Title, TitleKind};
 
@@ -66,7 +68,7 @@ pub fn show(ui: &mut egui::Ui, art: &mut Art<'_>, shelves: Shelves<'_>, actions:
         .auto_shrink([false, false])
         .show(ui, |ui| {
             if !featured.is_empty() {
-                hero(ui, art, &featured, actions);
+                hero(ui, art, &featured, &view.listed, actions);
                 ui.add_space(theme::space::L);
             }
             if !searching && offer_metadata {
@@ -77,7 +79,7 @@ pub fn show(ui: &mut egui::Ui, art: &mut Art<'_>, shelves: Shelves<'_>, actions:
                 let resumable = pick(&view.resumable);
                 if !resumable.is_empty() {
                     ui::section(ui, "Continue watching");
-                    continue_row(ui, art, &resumable, actions);
+                    continue_row(ui, art, &resumable, view, actions);
                     ui.add_space(theme::space::XL);
                 }
                 // Only over the whole library: under a filter, a shelf of
@@ -86,7 +88,7 @@ pub fn show(ui: &mut egui::Ui, art: &mut Art<'_>, shelves: Shelves<'_>, actions:
                 if view.filter == Filter::All {
                     for (label, indices) in &view.shelves {
                         ui::section(ui, label);
-                        shelf_row(ui, art, label, &pick(indices), tiles, actions);
+                        shelf_row(ui, art, label, &pick(indices), view, tiles, actions);
                         ui.add_space(theme::space::XL);
                     }
                 }
@@ -201,7 +203,13 @@ struct Turn {
 ///
 /// Edge to edge rather than inside the page's margin, and square: a banner
 /// in the margin with rounded corners read as one more card.
-fn hero(ui: &mut egui::Ui, art: &mut Art<'_>, titles: &[&Title], actions: &mut Vec<Action>) {
+fn hero(
+    ui: &mut egui::Ui,
+    art: &mut Art<'_>,
+    titles: &[&Title],
+    listed: &HashSet<String>,
+    actions: &mut Vec<Action>,
+) {
     let height = (ui.ctx().content_rect().height() * 0.5).clamp(280.0, 520.0);
     let (column, _) = ui.allocate_exact_size(
         egui::vec2(ui.available_width(), height),
@@ -315,7 +323,7 @@ fn hero(ui: &mut egui::Ui, art: &mut Art<'_>, titles: &[&Title], actions: &mut V
             .layout(egui::Layout::bottom_up(egui::Align::Min)),
         |ui| {
             ui.multiply_opacity(arriving);
-            hero_text(ui, art, title, actions);
+            hero_text(ui, art, title, listed.contains(&title.key), actions);
         },
     );
 
@@ -413,7 +421,13 @@ fn backdrop(
 
 /// What the banner says about one title, from the bottom up: how far into it
 /// the viewer is, the buttons, the synopsis, the facts and the name.
-fn hero_text(ui: &mut egui::Ui, art: &mut Art<'_>, title: &Title, actions: &mut Vec<Action>) {
+fn hero_text(
+    ui: &mut egui::Ui,
+    art: &mut Art<'_>,
+    title: &Title,
+    on_list: bool,
+    actions: &mut Vec<Action>,
+) {
     let found = art
         .metadata
         .get(&title.key)
@@ -448,6 +462,8 @@ fn hero_text(ui: &mut egui::Ui, art: &mut Art<'_>, title: &Title, actions: &mut
         if ui::tonal_button(ui, &more).clicked() {
             actions.push(Action::Goto(Page::Title(title.key.clone())));
         }
+        ui.add_space(theme::space::S);
+        ui::list_button(ui, &title.key, on_list, actions);
     });
     ui.add_space(theme::space::L);
     if let Some(overview) = found.as_ref().and_then(|found| found.overview.as_deref()) {
@@ -614,10 +630,12 @@ fn shelf_row(
     art: &mut Art<'_>,
     label: &str,
     titles: &[&Title],
+    view: &LibraryView,
     tiles: Tiles,
     actions: &mut Vec<Action>,
 ) {
     let (width, aspect) = tile_shape(tiles);
+    let now = crate::engine::unix_now();
     ui::shelf(ui, ("shelf", label), |ui| {
         ui.horizontal(|ui| {
             ui.spacing_mut().item_spacing.x = theme::CARD_GAP;
@@ -633,12 +651,16 @@ fn shelf_row(
                         name: art.name(title),
                         subtitle: subtitle(title),
                         progress: title.resume().and_then(|e| e.progress()).map(|v| v as f32),
-                        badge: None,
+                        badge: view
+                            .badges
+                            .get(&title.key)
+                            .cloned()
+                            .or_else(|| countdown(art, title, now)),
                         width,
                         aspect,
                     },
                 );
-                tile_menu(&response, title, false, actions);
+                tile_menu(&response, title, false, view, actions);
                 if response.clicked() {
                     actions.push(Action::Goto(Page::Title(title.key.clone())));
                 }
@@ -647,6 +669,19 @@ fn shelf_row(
     });
 }
 
+/// `Ep 8 · in 2 d` on a show whose next episode is still to air.
+fn countdown(art: &Art<'_>, title: &Title, now: i64) -> Option<String> {
+    let (episode, at) = art
+        .metadata
+        .get(&title.key)?
+        .metadata
+        .as_ref()?
+        .details
+        .as_ref()?
+        .next_airing(now)?;
+    Some(pstr_core::news::countdown(episode, at, now))
+}
+
 /// The minimum width and the picture's shape of a tile.
 fn tile_shape(tiles: Tiles) -> (f32, f32) {
     match tiles {
@@ -660,6 +695,7 @@ fn continue_row(
     ui: &mut egui::Ui,
     art: &mut Art<'_>,
     titles: &[&Title],
+    view: &LibraryView,
     actions: &mut Vec<Action>,
 ) {
     ui::shelf(ui, "continue", |ui| {
@@ -693,7 +729,7 @@ fn continue_row(
                         aspect: theme::CARD_ASPECT,
                     },
                 );
-                tile_menu(&response, title, true, actions);
+                tile_menu(&response, title, true, view, actions);
 
                 if response.clicked() {
                     actions.push(Action::Goto(Page::Title(title.key.clone())));
@@ -758,13 +794,18 @@ fn grid(
                         progress: title.resume().and_then(|e| e.progress()).map(|v| v as f32),
                         // What a film is says itself in the subtitle below the
                         // card; a second `Film` over the poster is noise. A
-                        // folded franchise says how much is under it.
-                        badge: folded.map(|more| format!("+{more}")),
+                        // folded franchise says how much is under it, unless
+                        // something new arrived in it.
+                        badge: view
+                            .badges
+                            .get(&title.key)
+                            .cloned()
+                            .or_else(|| folded.map(|more| format!("+{more}"))),
                         width: grid.width,
                         aspect,
                     },
                 );
-                tile_menu(&response, title, false, actions);
+                tile_menu(&response, title, false, view, actions);
 
                 if response.clicked() {
                     actions.push(Action::Goto(Page::Title(title.key.clone())));
@@ -783,6 +824,7 @@ fn tile_menu(
     response: &egui::Response,
     title: &Title,
     continuing: bool,
+    view: &LibraryView,
     actions: &mut Vec<Action>,
 ) {
     response.context_menu(|ui| {
@@ -799,6 +841,20 @@ fn tile_menu(
         if ui.button("Open").clicked() {
             actions.push(Action::Goto(Page::Title(title.key.clone())));
         }
+        let on_list = view.listed.contains(&title.key);
+        if ui
+            .button(if on_list {
+                "Remove from My List"
+            } else {
+                "Add to My List"
+            })
+            .clicked()
+        {
+            actions.push(Action::SetOnList {
+                key: title.key.clone(),
+                on: !on_list,
+            });
+        }
         ui.separator();
 
         let all_watched = title.watched_count() == title.episode_count();

crates/pstr-app/src/ui/mod.rs

@@ -23,6 +23,7 @@ use egui::{Align2, Color32, CornerRadius, Rect, Sense, Stroke, Vec2};
 use pstr_core::library::{Episode, Title};
 use pstr_core::metadata::{ArtShape, EpisodeGuide, EpisodeMetadata, MetadataRecord, TitleNames};
 
+use crate::app::Action;
 use crate::engine::{Engine, ImageCache, WIDE_MAX_EDGE, thumbnail_key};
 use crate::theme;
 use widgets::Named;
@@ -375,6 +376,27 @@ pub fn tonal_button(ui: &mut egui::Ui, text: &str) -> egui::Response {
     filled(ui, text, Fill::Tonal, Vec2::new(0.0, 0.0))
 }
 
+/// My List's button: `+ My List` to put the title on it, `✓ My List` once it
+/// is, which takes it off again.
+pub fn list_button(ui: &mut egui::Ui, key: &str, on_list: bool, actions: &mut Vec<Action>) {
+    let label = if on_list {
+        format!("{}  My List", egui_phosphor::regular::CHECK)
+    } else {
+        format!("{}  My List", egui_phosphor::regular::PLUS)
+    };
+    let response = tonal_button(ui, &label).on_hover_text(if on_list {
+        "On My List. Click to take it off"
+    } else {
+        "Put it on My List, to find it again on every device"
+    });
+    if response.clicked() {
+        actions.push(Action::SetOnList {
+            key: key.to_owned(),
+            on: !on_list,
+        });
+    }
+}
+
 /// A button laid over the picture: dark glass and white ink, whatever the
 /// theme, because what is under it is a video frame and not the page.
 pub fn glass_button(ui: &mut egui::Ui, text: &str) -> egui::Response {

crates/pstr-app/src/ui/title.rs

@@ -16,15 +16,23 @@ pub struct OfflineView<'a> {
     pub files: &'a std::collections::HashSet<DownloadKey>,
 }
 
+/// Where the title stands beyond its own files.
+pub struct Context<'a> {
+    /// The keys of its whole franchise in release order, if it has one.
+    pub franchise: Option<&'a [String]>,
+    pub on_list: bool,
+}
+
 pub fn show(
     ui: &mut egui::Ui,
     art: &mut Art<'_>,
     library: &Library,
     key: &str,
-    franchise: Option<&[String]>,
+    context: Context<'_>,
     offline: OfflineView<'_>,
     actions: &mut Vec<Action>,
 ) {
+    let Context { franchise, on_list } = context;
     let Some(title) = library.get(key) else {
         // The catalog was replaced under the page — a recrawl that dropped this
         // title. Nothing to show, so go back rather than draw an empty shell.
@@ -40,7 +48,7 @@ pub fn show(
     egui::ScrollArea::vertical()
         .auto_shrink([false, false])
         .show(ui, |ui| {
-            header(ui, art, title, &offline, actions);
+            header(ui, art, title, on_list, &offline, actions);
             ui.add_space(theme::space::XL);
 
             if let Some(keys) = franchise {
@@ -289,6 +297,7 @@ fn header(
     ui: &mut egui::Ui,
     art: &mut Art<'_>,
     title: &Title,
+    on_list: bool,
     offline: &OfflineView<'_>,
     actions: &mut Vec<Action>,
 ) {
@@ -425,6 +434,7 @@ fn header(
                             None,
                         )));
                     }
+                    ui::list_button(ui, &title.key, on_list, actions);
                     let title_keys: Vec<_> = title.episodes().map(key_of).collect();
                     let all_offline = title_keys.iter().all(|key| offline.files.contains(key));
                     if all_offline {

crates/pstr-core/src/browse.rs

@@ -10,6 +10,7 @@ use std::collections::{HashMap, HashSet};
 use crate::catalog::CatalogNode;
 use crate::library::{Library, Title, TitleKind, sort_name};
 use crate::metadata::{MetadataRecord, TitleNames};
+use crate::mylist::MyList;
 
 /// What order a grid is in.
 #[derive(Debug, Clone, Copy, PartialEq, Eq, Default, serde::Serialize, serde::Deserialize)]
@@ -66,11 +67,14 @@ pub enum Filter {
     Unwatched,
     /// With at least one episode kept on this device.
     Downloaded,
+    /// On My List.
+    MyList,
 }
 
 impl Filter {
-    pub const ALL: [Self; 6] = [
+    pub const ALL: [Self; 7] = [
         Self::All,
+        Self::MyList,
         Self::Series,
         Self::Films,
         Self::Watching,
@@ -86,12 +90,18 @@ impl Filter {
             Self::Watching => "Watching",
             Self::Unwatched => "Not started",
             Self::Downloaded => "Downloaded",
+            Self::MyList => "My List",
         }
     }
 
     /// Whether the grid shows `title`. `offline` says whether a file is kept
     /// on this device, which only the front end knows.
-    pub fn admits(self, title: &Title, offline: impl Fn(&CatalogNode) -> bool) -> bool {
+    pub fn admits(
+        self,
+        title: &Title,
+        offline: impl Fn(&CatalogNode) -> bool,
+        list: &MyList,
+    ) -> bool {
         let watched = title.watched_count();
         match self {
             Self::All => true,
@@ -102,6 +112,7 @@ impl Filter {
             }
             Self::Unwatched => watched == 0 && title.resume().is_none(),
             Self::Downloaded => title.episodes().any(|episode| offline(&episode.node)),
+            Self::MyList => list.contains(&title.key),
         }
     }
 }
@@ -455,12 +466,18 @@ mod tests {
         let film = title("f", "Film", TitleKind::Film);
         let series = title("s", "Series", TitleKind::Series);
         let none = |_: &CatalogNode| false;
-        assert!(Filter::All.admits(&film, none) && Filter::All.admits(&series, none));
-        assert!(Filter::Films.admits(&film, none) && !Filter::Films.admits(&series, none));
-        assert!(Filter::Series.admits(&series, none) && !Filter::Series.admits(&film, none));
+        let list = MyList::default();
+        assert!(Filter::All.admits(&film, none, &list) && Filter::All.admits(&series, none, &list));
+        assert!(
+            Filter::Films.admits(&film, none, &list) && !Filter::Films.admits(&series, none, &list)
+        );
+        assert!(
+            Filter::Series.admits(&series, none, &list)
+                && !Filter::Series.admits(&film, none, &list)
+        );
         // Nothing watched of either: not started, and not being watched.
-        assert!(Filter::Unwatched.admits(&film, none));
-        assert!(!Filter::Watching.admits(&film, none));
+        assert!(Filter::Unwatched.admits(&film, none, &list));
+        assert!(!Filter::Watching.admits(&film, none, &list));
     }
 
     #[test]
@@ -486,7 +503,18 @@ mod tests {
         let library = Library::build(vec![node("a", 1), node("b", 2)], &HashMap::new());
         let show = &library.titles[0];
 
-        assert!(Filter::Downloaded.admits(show, |node| node.link_id == "b"));
-        assert!(!Filter::Downloaded.admits(show, |_| false));
+        let list = MyList::default();
+        assert!(Filter::Downloaded.admits(show, |node| node.link_id == "b", &list));
+        assert!(!Filter::Downloaded.admits(show, |_| false, &list));
+    }
+
+    #[test]
+    fn the_my_list_filter_admits_only_what_is_on_the_list() {
+        let film = title("f", "Film", TitleKind::Film);
+        let series = title("s", "Series", TitleKind::Series);
+        let mut list = MyList::default();
+        list.add("s", 1);
+        assert!(Filter::MyList.admits(&series, |_| false, &list));
+        assert!(!Filter::MyList.admits(&film, |_| false, &list));
     }
 }

crates/pstr-core/src/lib.rs

@@ -16,7 +16,9 @@ pub mod franchise;
 pub mod language;
 pub mod library;
 pub mod metadata;
+pub mod mylist;
 pub mod naming;
+pub mod news;
 pub mod prefs;
 pub mod profile;
 pub mod shares;

crates/pstr-core/src/mylist.rs

@@ -0,0 +1,141 @@
+//! My List: the titles the viewer put aside to watch, kept in
+//! `my-list.json` beside the other settings.
+//!
+//! Keyed by title key, like a hand-picked match, so a title keeps its place on
+//! the list across a recrawl and on every device that has the same share. A
+//! title that leaves the library stays on the list, unseen, and is back on it
+//! when the share brings it back.
+//!
+//! It travels with the profile, one `list/<title key>` register per title
+//! ([`crate::profile`]): adding a title on the phone puts it on the laptop's
+//! list, and taking it off on one takes it off on all of them.
+
+use std::collections::BTreeMap;
+use std::path::PathBuf;
+
+use serde::{Deserialize, Serialize};
+
+use crate::config::{AppDirs, read_json, write_json};
+use crate::error::Result;
+
+/// The titles on the list, by key, with when each was put there in Unix
+/// seconds.
+#[derive(Debug, Clone, Default, PartialEq, Eq, Serialize, Deserialize)]
+pub struct MyList {
+    #[serde(default)]
+    titles: BTreeMap<String, i64>,
+}
+
+impl MyList {
+    pub fn contains(&self, key: &str) -> bool {
+        self.titles.contains_key(key)
+    }
+
+    pub fn is_empty(&self) -> bool {
+        self.titles.is_empty()
+    }
+
+    /// When `key` was put on the list, if it is on it.
+    pub fn added_at(&self, key: &str) -> Option<i64> {
+        self.titles.get(key).copied()
+    }
+
+    /// Put `key` on the list at `at`. One already there keeps its place.
+    pub fn add(&mut self, key: &str, at: i64) {
+        self.titles.entry(key.to_owned()).or_insert(at);
+    }
+
+    pub fn remove(&mut self, key: &str) {
+        self.titles.remove(key);
+    }
+
+    /// Put `key` on the list or take it off, saying which.
+    pub fn toggle(&mut self, key: &str, at: i64) -> bool {
+        if self.contains(key) {
+            self.remove(key);
+            false
+        } else {
+            self.add(key, at);
+            true
+        }
+    }
+
+    /// Every key with when it was added, in key order.
+    pub fn entries(&self) -> impl Iterator<Item = (&str, i64)> {
+        self.titles.iter().map(|(key, at)| (key.as_str(), *at))
+    }
+
+    /// The keys, most recently added first: the order the row is in.
+    pub fn newest_first(&self) -> Vec<&str> {
+        let mut keys: Vec<(&str, i64)> = self.entries().collect();
+        keys.sort_by_key(|(_, at)| std::cmp::Reverse(*at));
+        keys.into_iter().map(|(key, _)| key).collect()
+    }
+
+    /// Set `key`'s entry as another device had it: on the list since `at`,
+    /// or, with `None`, off it.
+    pub(crate) fn set(&mut self, key: &str, at: Option<i64>) {
+        match at {
+            Some(at) => {
+                self.titles.insert(key.to_owned(), at);
+            }
+            None => self.remove(key),
+        }
+    }
+}
+
+pub(crate) fn file(dirs: &AppDirs) -> PathBuf {
+    dirs.config.join("my-list.json")
+}
+
+/// The list, empty when there is no file yet.
+pub fn load(dirs: &AppDirs) -> Result<MyList> {
+    Ok(read_json::<MyList>(&file(dirs))?.unwrap_or_default())
+}
+
+pub fn save(dirs: &AppDirs, list: &MyList) -> Result<()> {
+    write_json(&file(dirs), list)
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn a_title_added_twice_keeps_the_time_it_was_first_added() {
+        let mut list = MyList::default();
+        list.add("frieren", 10);
+        list.add("frieren", 20);
+        assert_eq!(list.added_at("frieren"), Some(10));
+    }
+
+    #[test]
+    fn toggling_puts_a_title_on_the_list_and_takes_it_off_again() {
+        let mut list = MyList::default();
+        assert!(list.toggle("frieren", 10));
+        assert!(list.contains("frieren"));
+        assert!(!list.toggle("frieren", 20));
+        assert!(list.is_empty());
+    }
+
+    #[test]
+    fn the_row_shows_the_most_recently_added_title_first() {
+        let mut list = MyList::default();
+        list.add("a", 30);
+        list.add("b", 10);
+        list.add("c", 20);
+        assert_eq!(list.newest_first(), ["a", "c", "b"]);
+    }
+
+    #[test]
+    fn the_list_survives_a_save_and_a_load() {
+        let root = std::env::temp_dir().join(format!("pstr-mylist-{}", std::process::id()));
+        let dirs = AppDirs::from_paths(root.join("c"), root.join("d"), root.join("k")).unwrap();
+        assert!(load(&dirs).unwrap().is_empty());
+        let mut list = MyList::default();
+        list.add("one piece", 5);
+        save(&dirs, &list).unwrap();
+        assert_eq!(load(&dirs).unwrap(), list);
+        let _ = std::fs::remove_dir_all(&root);
+    }
+}

crates/pstr-core/src/news.rs

@@ -0,0 +1,304 @@
+//! What arrived since the viewer last looked: the **New** and **3 new**
+//! badges, the "New episodes" and "Recently added" rows, and the countdown on
+//! an airing show's tile.
+//!
+//! All of it is read off [`crate::catalog::Catalog::first_seen`], the time a
+//! crawl first found each file. A file the first crawl of its share found is
+//! not new, however recent that crawl: it was there before this device looked,
+//! and a share added today would otherwise badge its whole library.
+
+use std::collections::HashMap;
+
+use crate::library::{Episode, Title, TitleKind};
+use crate::shelves::Shelf;
+
+/// How long a title that arrived stays **New**, unless it is started first.
+pub const NEW_FOR: i64 = 14 * 86_400;
+
+/// What a tile says about what arrived.
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub enum Badge {
+    /// A title that arrived in the last [`NEW_FOR`] and was never played.
+    New,
+    /// A series being watched, with this many unwatched episodes that arrived
+    /// after it was last played.
+    Episodes(usize),
+}
+
+impl Badge {
+    pub fn label(self) -> String {
+        match self {
+            Self::New => "New".to_owned(),
+            Self::Episodes(count) => format!("{count} new"),
+        }
+    }
+}
+
+/// When each file arrived, read against when its share was first crawled.
+pub struct Arrivals<'a> {
+    first_seen: &'a HashMap<(String, String), i64>,
+    /// The earliest sighting in each share: its first crawl.
+    first_crawl: HashMap<&'a str, i64>,
+}
+
+impl<'a> Arrivals<'a> {
+    pub fn new(first_seen: &'a HashMap<(String, String), i64>) -> Self {
+        let mut first_crawl: HashMap<&str, i64> = HashMap::new();
+        for ((share, _), seen) in first_seen {
+            first_crawl
+                .entry(share.as_str())
+                .and_modify(|first| *first = (*first).min(*seen))
+                .or_insert(*seen);
+        }
+        Self {
+            first_seen,
+            first_crawl,
+        }
+    }
+
+    /// When `episode`'s file arrived, if a crawl after its share's first one
+    /// found it.
+    pub fn arrived(&self, episode: &Episode) -> Option<i64> {
+        let node = &episode.node;
+        let seen = *self
+            .first_seen
+            .get(&(node.share_id.clone(), node.link_id.clone()))?;
+        let first = self.first_crawl.get(node.share_id.as_str())?;
+        (seen > *first).then_some(seen)
+    }
+
+    /// The badge for `title`, if it has one.
+    pub fn badge(&self, title: &Title, now: i64) -> Option<Badge> {
+        let played = title.last_played();
+        if played == 0 {
+            // New only if every file of it arrived: a show the first crawl
+            // found is not new because a crawl since added an episode.
+            let arrived: Option<Vec<i64>> = title
+                .episodes()
+                .map(|episode| self.arrived(episode))
+                .collect();
+            let first = arrived?.into_iter().min()?;
+            return (now - first < NEW_FOR).then_some(Badge::New);
+        }
+        if title.kind != TitleKind::Series {
+            return None;
+        }
+        let count = title
+            .episodes()
+            .filter(|episode| !episode.is_watched())
+            .filter(|episode| self.arrived(episode).is_some_and(|at| at > played))
+            .count();
+        (count > 0).then_some(Badge::Episodes(count))
+    }
+
+    /// When `title` last gained a file that counts as arrived.
+    fn newest(&self, title: &Title) -> Option<i64> {
+        title
+            .episodes()
+            .filter_map(|episode| self.arrived(episode))
+            .max()
+    }
+}
+
+/// Every badge in `titles`, by key.
+pub fn badges(
+    titles: &[Title],
+    first_seen: &HashMap<(String, String), i64>,
+    now: i64,
+) -> HashMap<String, Badge> {
+    let arrivals = Arrivals::new(first_seen);
+    titles
+        .iter()
+        .filter_map(|title| Some((title.key.clone(), arrivals.badge(title, now)?)))
+        .collect()
+}
+
+/// The two rows of what arrived, newest arrival first. `None` for a row with
+/// nothing in it.
+#[derive(Debug, Default)]
+pub struct Rows {
+    /// "New episodes": the shows being watched that gained episodes.
+    pub episodes: Option<Shelf>,
+    /// "Recently added": the titles that are [`Badge::New`].
+    pub added: Option<Shelf>,
+}
+
+pub fn rows(titles: &[Title], first_seen: &HashMap<(String, String), i64>, now: i64) -> Rows {
+    let arrivals = Arrivals::new(first_seen);
+    let mut episodes: Vec<(&Title, i64)> = Vec::new();
+    let mut added: Vec<(&Title, i64)> = Vec::new();
+    for title in titles {
+        let (Some(badge), Some(newest)) = (arrivals.badge(title, now), arrivals.newest(title))
+        else {
+            continue;
+        };
+        match badge {
+            Badge::Episodes(_) => episodes.push((title, newest)),
+            Badge::New => added.push((title, newest)),
+        }
+    }
+    let shelf = |label: &str, mut row: Vec<(&Title, i64)>| {
+        row.sort_by_key(|(_, newest)| std::cmp::Reverse(*newest));
+        (!row.is_empty()).then(|| Shelf {
+            label: label.to_owned(),
+            keys: row
+                .into_iter()
+                .map(|(title, _)| title.key.clone())
+                .collect(),
+        })
+    };
+    Rows {
+        episodes: shelf("New episodes", episodes),
+        added: shelf("Recently added", added),
+    }
+}
+
+/// What an airing show's tile says about its next episode: `Ep 8 · in 2 d`,
+/// `Ep 8 · in 5 h`, `Ep 8 · soon`.
+pub fn countdown(episode: u32, at: i64, now: i64) -> String {
+    let left = (at - now).max(0);
+    let when = match left {
+        0..3_600 => "soon".to_owned(),
+        3_600..86_400 => format!("in {} h", left / 3_600),
+        _ => format!("in {} d", left / 86_400),
+    };
+    format!("Ep {episode} · {when}")
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use crate::catalog::{CatalogNode, WatchState};
+    use crate::library::Library;
+
+    const DAY: i64 = 86_400;
+
+    fn file(share: &str, link: &str, title: &str, episode: u32) -> CatalogNode {
+        CatalogNode {
+            share_id: share.into(),
+            link_id: link.into(),
+            volume_id: "v".into(),
+            parent_link_id: None,
+            name: format!("{title} - {episode:02}.mkv"),
+            is_folder: false,
+            media_type: Some("video/x-matroska".into()),
+            size: Some(1),
+            active_revision_id: Some("r".into()),
+            parsed: crate::naming::parse(&format!("{title} - {episode:02}.mkv")),
+        }
+    }
+
+    fn watched(at: i64) -> WatchState {
+        WatchState {
+            position_secs: 1_400.0,
+            duration_secs: Some(1_440.0),
+            watched: true,
+            updated_at: at,
+        }
+    }
+
+    /// One share whose first crawl at day 1 found Frieren 1–2, and Dandadan 1
+    /// arriving at day 20 next to Frieren 3.
+    fn share(frieren_played: Option<i64>) -> (Library, HashMap<(String, String), i64>) {
+        let files = vec![
+            file("s", "f1", "Frieren", 1),
+            file("s", "f2", "Frieren", 2),
+            file("s", "f3", "Frieren", 3),
+            file("s", "d1", "Dandadan", 1),
+        ];
+        let mut watch = HashMap::new();
+        if let Some(at) = frieren_played {
+            watch.insert(("s".to_owned(), "f1".to_owned()), watched(at));
+            watch.insert(("s".to_owned(), "f2".to_owned()), watched(at));
+        }
+        let seen = [("f1", 1), ("f2", 1), ("f3", 20), ("d1", 20)]
+            .into_iter()
+            .map(|(link, day)| (("s".to_owned(), link.to_owned()), day * DAY))
+            .collect();
+        (Library::build(files, &watch), seen)
+    }
+
+    fn named<'a>(library: &'a Library, name: &str) -> &'a Title {
+        library
+            .titles
+            .iter()
+            .find(|title| title.name == name)
+            .unwrap()
+    }
+
+    #[test]
+    fn what_the_first_crawl_of_a_share_found_is_never_new() {
+        let (library, seen) = share(None);
+        let arrivals = Arrivals::new(&seen);
+        let frieren = named(&library, "Frieren");
+        assert_eq!(arrivals.badge(frieren, 21 * DAY), None);
+    }
+
+    #[test]
+    fn a_title_that_arrived_is_new_for_two_weeks_unless_it_is_started() {
+        let (library, seen) = share(None);
+        let arrivals = Arrivals::new(&seen);
+        let dandadan = named(&library, "Dandadan");
+        assert_eq!(arrivals.badge(dandadan, 21 * DAY), Some(Badge::New));
+        assert_eq!(arrivals.badge(dandadan, 20 * DAY + NEW_FOR), None);
+    }
+
+    #[test]
+    fn a_show_being_watched_counts_the_episodes_that_arrived_after_the_last_watch() {
+        let (library, seen) = share(Some(10 * DAY));
+        let arrivals = Arrivals::new(&seen);
+        let frieren = named(&library, "Frieren");
+        assert_eq!(arrivals.badge(frieren, 21 * DAY), Some(Badge::Episodes(1)));
+        assert_eq!(Badge::Episodes(1).label(), "1 new");
+
+        // Watched after episode 3 arrived: nothing is new to the viewer.
+        let (library, seen) = share(Some(25 * DAY));
+        let arrivals = Arrivals::new(&seen);
+        assert_eq!(arrivals.badge(named(&library, "Frieren"), 26 * DAY), None);
+    }
+
+    #[test]
+    fn the_rows_hold_new_episodes_and_recent_arrivals_and_leave_out_an_empty_one() {
+        let (library, seen) = share(Some(10 * DAY));
+        let found = rows(&library.titles, &seen, 21 * DAY);
+        let labels: Vec<(&str, Vec<&str>)> = [&found.episodes, &found.added]
+            .into_iter()
+            .flatten()
+            .map(|row| {
+                let names = row
+                    .keys
+                    .iter()
+                    .map(|key| {
+                        library
+                            .titles
+                            .iter()
+                            .find(|title| &title.key == key)
+                            .unwrap()
+                            .name
+                            .as_str()
+                    })
+                    .collect();
+                (row.label.as_str(), names)
+            })
+            .collect();
+        assert_eq!(
+            labels,
+            [
+                ("New episodes", vec!["Frieren"]),
+                ("Recently added", vec!["Dandadan"])
+            ]
+        );
+
+        let (library, seen) = share(None);
+        let found = rows(&library.titles, &seen, 21 * DAY);
+        assert!(found.episodes.is_none());
+        assert_eq!(found.added.unwrap().label, "Recently added");
+    }
+
+    #[test]
+    fn the_countdown_says_days_then_hours_then_soon() {
+        assert_eq!(countdown(8, 3 * DAY + 100, 0), "Ep 8 · in 3 d");
+        assert_eq!(countdown(8, 5 * 3_600 + 10, 0), "Ep 8 · in 5 h");
+        assert_eq!(countdown(8, 600, 0), "Ep 8 · soon");
+    }
+}

crates/pstr-core/src/profile.rs

@@ -1,6 +1,6 @@
 //! The rest of what makes the app look the same on every device: the shares,
-//! the settings, the hand-picked metadata matches and the per-show track
-//! choices. Synced next to watch history by [`crate::sync`], in the same file.
+//! the settings, the hand-picked metadata matches, the per-show track choices
+//! and My List. Synced next to watch history by [`crate::sync`], in the same file.
 //!
 //! ## Registers
 //!
@@ -8,8 +8,8 @@
 //! `settings/playback`, `tracks/<title>`, …), its latest value, and when it
 //! last changed. Merging is the same rule as watch history — the newer
 //! `updated_at` wins, per key — so it is idempotent and order-free across any
-//! number of devices. A removed share is a register with no value, so a
-//! removal travels like any other change.
+//! number of devices. A removed share, or a title taken off My List, is a
+//! register with no value, so a removal travels like any other change.
 //!
 //! ## Noticing changes
 //!
@@ -56,6 +56,7 @@ use crate::shares::{AccountFolder, Share, ShareSecrets, ShareStore};
 const SHARE: &str = "share/";
 const TRACKS: &str = "tracks/";
 const MATCH: &str = "match/";
+const LIST: &str = "list/";
 
 /// The settings files that travel, by register, and the fields in each that
 /// stay on the device that wrote them.
@@ -98,6 +99,12 @@ struct SyncedShare {
     folder: Option<AccountFolder>,
 }
 
+/// A title on My List.
+#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
+struct SyncedListEntry {
+    added_at: i64,
+}
+
 /// A match the viewer picked by hand. Automatic ones are not synced: every
 /// device with enrichment on finds them again, and they expire anyway.
 #[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
@@ -123,6 +130,8 @@ pub struct ProfileChanges {
     pub settings: bool,
     /// Hand-picked matches and per-show track choices taken.
     pub titles: usize,
+    /// Whether My List changed.
+    pub list: bool,
 }
 
 impl ProfileChanges {
@@ -154,6 +163,8 @@ struct Observed {
     /// Whether the share list itself could be read. Without it, a share
     /// missing from `values` says nothing about whether it was removed.
     shares_listed: bool,
+    /// The same for My List.
+    list_read: bool,
 }
 
 fn state_file(dirs: &AppDirs) -> PathBuf {
@@ -248,6 +259,18 @@ impl Profile<'_> {
             }
         }
 
+        match crate::mylist::load(self.dirs()) {
+            Ok(list) => {
+                observed.list_read = true;
+                for (title, added_at) in list.entries() {
+                    if let Ok(value) = serde_json::to_value(SyncedListEntry { added_at }) {
+                        observed.values.insert(format!("{LIST}{title}"), value);
+                    }
+                }
+            }
+            Err(error) => tracing::warn!(%error, "My List was not synced"),
+        }
+
         let catalog = self.catalog.lock();
         if let Ok(tracks) = catalog.all_title_track_prefs() {
             for (title, prefs) in tracks {
@@ -320,6 +343,19 @@ impl Profile<'_> {
             }
             return Ok(());
         }
+        if let Some(title) = key.strip_prefix(LIST) {
+            let added_at = value
+                .map(parse::<SyncedListEntry>)
+                .transpose()?
+                .map(|entry| entry.added_at);
+            let mut list = crate::mylist::load(self.dirs())?;
+            if list.added_at(title) != added_at {
+                list.set(title, added_at);
+                crate::mylist::save(self.dirs(), &list)?;
+                changes.list = true;
+            }
+            return Ok(());
+        }
         if key == TMDB_KEY {
             match value.and_then(Value::as_str) {
                 Some(secret) => self.store.secrets.set(&tmdb_secret(), secret)?,
@@ -428,9 +464,10 @@ impl Profile<'_> {
 /// Record what changed on this device since the last sync, stamped `now`.
 fn stamp(registers: &mut Registers, observed: Observed, now: i64) {
     for (key, register) in registers.iter_mut() {
+        let removable = (key.starts_with(SHARE) && observed.shares_listed)
+            || (key.starts_with(LIST) && observed.list_read);
         if register.value.is_some()
-            && key.starts_with(SHARE)
-            && observed.shares_listed
+            && removable
             && !observed.values.contains_key(key)
             && !observed.unknown.contains(key)
         {
@@ -789,6 +826,58 @@ pub(crate) mod tests {
         );
     }
 
+    #[test]
+    fn a_title_put_on_my_list_on_one_device_is_on_the_list_of_another() {
+        let laptop = Device::new("laptop");
+        let phone = Device::new("phone");
+        laptop.sync(&[], 1);
+        let mut list = crate::mylist::MyList::default();
+        list.add("frieren", 5);
+        crate::mylist::save(&laptop.store.dirs, &list).unwrap();
+        let (sent, _) = laptop.sync(&[], 10);
+
+        let (_, changes) = phone.sync(&[&sent], 20);
+
+        assert!(changes.list);
+        let taken = crate::mylist::load(&phone.store.dirs).unwrap();
+        assert_eq!(taken.added_at("frieren"), Some(5));
+    }
+
+    #[test]
+    fn a_title_taken_off_my_list_on_one_device_leaves_every_list() {
+        let laptop = Device::new("laptop");
+        let phone = Device::new("phone");
+        let mut list = crate::mylist::MyList::default();
+        list.add("frieren", 5);
+        list.add("one piece", 6);
+        crate::mylist::save(&laptop.store.dirs, &list).unwrap();
+        let (sent, _) = laptop.sync(&[], 10);
+        let (phone_sent, _) = phone.sync(&[&sent], 20);
+
+        let mut list = crate::mylist::load(&phone.store.dirs).unwrap();
+        list.remove("frieren");
+        crate::mylist::save(&phone.store.dirs, &list).unwrap();
+        let (phone_sent, _) = phone.sync(&[&sent, &phone_sent], 30);
+        let (sent, changes) = laptop.sync(&[&phone_sent], 40);
+
+        assert!(changes.list);
+        let left = crate::mylist::load(&laptop.store.dirs).unwrap();
+        assert!(!left.contains("frieren"));
+        assert!(left.contains("one piece"));
+
+        // Put back later, it is back everywhere: the removal is older.
+        let mut list = left;
+        list.add("frieren", 50);
+        crate::mylist::save(&laptop.store.dirs, &list).unwrap();
+        let (sent, _) = laptop.sync(&[&sent], 50);
+        phone.sync(&[&sent], 60);
+        assert!(
+            crate::mylist::load(&phone.store.dirs)
+                .unwrap()
+                .contains("frieren")
+        );
+    }
+
     #[test]
     fn a_synced_share_that_names_another_id_is_refused() {
         let phone = Device::new("phone");

crates/pstr-core/src/shelves.rs

@@ -135,6 +135,38 @@ pub fn pick(
     picked
 }
 
+/// Every row above the library grid, in the order all three apps show them:
+/// new episodes of what is being watched, My List, what was recently added,
+/// then up to `limit` [`pick`]ed shelves.
+pub fn home(
+    titles: &[Title],
+    metadata: &HashMap<String, MetadataRecord>,
+    list: &crate::mylist::MyList,
+    first_seen: &HashMap<(String, String), i64>,
+    now: i64,
+    limit: usize,
+) -> Vec<Shelf> {
+    let news = crate::news::rows(titles, first_seen, now);
+    let present: std::collections::HashSet<&str> =
+        titles.iter().map(|title| title.key.as_str()).collect();
+    let keys: Vec<String> = list
+        .newest_first()
+        .into_iter()
+        .filter(|key| present.contains(key))
+        .map(str::to_owned)
+        .collect();
+    let mine = (!keys.is_empty()).then(|| Shelf {
+        label: "My List".into(),
+        keys,
+    });
+    news.episodes
+        .into_iter()
+        .chain(mine)
+        .chain(news.added)
+        .chain(pick(titles, metadata, limit))
+        .collect()
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;
@@ -259,4 +291,17 @@ mod tests {
         assert_eq!(shelves[0].label, "Airing now");
         assert_eq!(shelves[0].keys, vec!["a"]);
     }
+
+    #[test]
+    fn my_list_is_a_row_of_what_the_library_holds_newest_first() {
+        let titles = vec![title("a"), title("b")];
+        let mut list = crate::mylist::MyList::default();
+        list.add("a", 1);
+        list.add("b", 3);
+        list.add("gone", 5);
+        let rows = home(&titles, &HashMap::new(), &list, &HashMap::new(), 10, 4);
+        assert_eq!(rows.len(), 1);
+        assert_eq!(rows[0].label, "My List");
+        assert_eq!(rows[0].keys, ["b", "a"]);
+    }
 }

docs/ACCOUNT_AND_SYNC.md

@@ -4,8 +4,8 @@ Signing in to Proton is optional. Without it, the app plays public share links a
 everything on one device. Signing in adds two things:
 
 - **Folders of your own Drive** as shares, with no link to copy.
-- **Sync** of your place in every episode, your shares and your settings, across every device
-  you sign in on.
+- **Sync** of your place in every episode, your shares, your settings and My List, across every
+  device you sign in on.
 
 ## Signing in
 
@@ -51,6 +51,8 @@ When you are signed in, each device keeps a small file in your Drive. You find t
   your Drive)
 - Settings: playback, appearance and posters and descriptions, including a TMDB key
 - Matches you picked by hand, and your audio and subtitle choice for each show
+- My List: a title you add on one device is on the list of every other, and one you remove is
+  removed from all of them
 
 **What stays on each device:** volume and mute, the streaming cache size, text size, Wi-Fi only,
 background audio, hardware decoding, window size, and the library's filter and sort order.
@@ -60,7 +62,7 @@ and when it closes. **Sync now** runs it at once. Android also syncs in the back
 after you leave the app.
 
 **How conflicts are settled:** each device writes only its own file, and reads everyone else's.
-For each episode and each setting, the newest change wins. A device that signs in for the first
+For each episode, each setting and each title on My List, the newest change wins. A device that signs in for the first
 time takes the others' state and does not overwrite it with its own defaults.
 
 A device that has not synced for 90 days has its file moved to the Drive trash.

docs/USER_GUIDE.md

@@ -14,16 +14,22 @@ The library shows every title from every share in one place. Two shares that hol
 show it once.
 
 - **The banner** across the top shows the title you watched last first, with **Resume**, how far
-  into it you are and **More info**. It then turns through up to four more titles that have a wide
+  into it you are, **More info** and **My List**. It then turns through up to four more titles that have a wide
   picture, a different set each day, moving on every eight seconds. It holds still while the
   pointer is over it; on a phone, swipe it or tap a dot under it to move on yourself. Its shading
   takes on the colours of the picture behind it, and so does the top of a title's page.
 - **Continue watching** has the episode you stopped in for each show, or the next one when you
   finished an episode. To take a show off this row, right-click it and choose **Remove from
   Continue watching**.
+- **New episodes** has the shows you are watching that got episodes since you last watched them.
+  Their tiles say how many, for example **3 new**.
+- **My List** has the titles you put aside to watch, the last one added first.
+- **Recently added** has the titles that arrived in the last two weeks and that you have not
+  started. Their tiles say **New**. What was already there when you added a share is not new.
 - **Shelves** such as **Airing now**, **Directed by Satoshi Kon** or **From MADHOUSE** appear when
   posters and descriptions are on. The app shows at most four, and only for a director, studio or
-  genre with at least three titles.
+  genre with at least three titles. On a shelf, a show that is still airing says when its next
+  episode is out, for example **Ep 8 · in 2 d**.
 - **All titles** is the full grid. Choose a filter and a sort order above it.
 
 Rows that run past the window fade out at the edge. Point at a row to show the arrows at its
@@ -31,7 +37,12 @@ ends, which move it along by a page.
 
 | Filters | Sort orders |
 |---|---|
-| All, Series, Films, Watching, Not started, Downloaded | A – Z, Recently watched, Recently added, Newest, Highest rated, Most popular |
+| All, My List, Series, Films, Watching, Not started, Downloaded | A – Z, Recently watched, Recently added, Newest, Highest rated, Most popular |
+
+**My List** is a list of titles to watch later. Add a title with **My List** on its page or on
+the banner, or right-click its tile and choose **Add to My List**. Choose the button again, or
+**Remove from My List**, to take it off. When you are signed in, the list syncs to your other
+devices ([Account and sync](ACCOUNT_AND_SYNC.md)).
 
 **Group franchises** folds a series, its sequels and its films into one tile with a **+N** badge.
 It is on by default, and needs posters and descriptions to know what belongs together.

ios/ProtonStream/App/AppModel.swift

@@ -480,7 +480,7 @@ final class AppModel {
         if report.settingsChanged {
             await AppearanceState.shared.reload()
         }
-        if report.applied > 0 || report.titles > 0 || report.settingsChanged || !report.sharesRemoved.isEmpty {
+        if report.applied > 0 || report.titles > 0 || report.settingsChanged || report.listChanged || !report.sharesRemoved.isEmpty {
             await reloadNow()
         }
         // A crawl takes longer than the grace iOS gives a backgrounded app.
@@ -534,6 +534,20 @@ final class AppModel {
         }
     }
 
+    // MARK: - My List
+
+    /// Put a title on My List, or take it off.
+    func setOnList(_ title: TitleRecord, _ on: Bool) {
+        Task {
+            do {
+                try await run { try $0.setOnList(key: title.key, on: on) }
+            } catch {
+                reportError(error)
+            }
+            reload()
+        }
+    }
+
     // MARK: - Watch state
 
     /// Every episode of a title watched or unwatched, with an Undo: a whole

ios/ProtonStream/App/SettingsStore.swift

@@ -78,7 +78,7 @@ struct SettingsStore {
         nonmutating set { defaults.set(newValue, forKey: Key.newEpisodeNotifications) }
     }
 
-    static let filters: [LibraryFilter] = [.all, .series, .films, .watching, .unwatched, .downloaded]
+    static let filters: [LibraryFilter] = [.all, .myList, .series, .films, .watching, .unwatched, .downloaded]
     private static let sorts: [LibrarySort] = [.name, .recent, .added, .release, .rating, .popularity]
 
     private func bool(_ key: String, default value: Bool) -> Bool {

ios/ProtonStream/UI/LibraryView.swift

@@ -148,6 +148,9 @@ struct LibraryView: View {
                     onResume(title, nextUpIndex(playlist, continueIndex: title.continueIndex))
                 }
                 MenuRow("info.circle", "Open") { onTitle(title) }
+                MenuRow(title.onList ? "checkmark" : "plus", title.onList ? "Remove from My List" : "Add to My List") {
+                    model.setOnList(title, !title.onList)
+                }
                 MenuRow("arrow.down.circle", "Download all") { pendingDownload = download(playlist, title.displayName) }
                 MenuRow(allWatched ? "checkmark.circle" : "checkmark.circle.fill", allWatched ? "Mark unwatched" : "Mark watched") {
                     model.setTitleWatched(title, !allWatched)
@@ -267,7 +270,9 @@ struct LibraryView: View {
                             ScrollView(.horizontal, showsIndicators: false) {
                                 LazyHStack(alignment: .top, spacing: 12) {
                                     ForEach(shelf.titles, id: \.key) { title in
-                                        PosterTile(title: title)
+                                        // On a shelf, an airing show says when its
+                                        // next episode is out.
+                                        PosterTile(title: title, badge: title.badge ?? title.countdown())
                                             .frame(width: 112)
                                             .tapAndHold { onTitle(title) } onHold: { longPressed { menuFor = title } }
                                     }
@@ -479,6 +484,7 @@ extension LibraryFilter {
         case .watching: "Watching"
         case .unwatched: "Not started"
         case .downloaded: "Downloaded"
+        case .myList: "My List"
         }
     }
 }
@@ -596,6 +602,7 @@ private struct FeaturedPage: View {
     let onPlay: (Int) -> Void
     let onOpen: () -> Void
     @Environment(\.scheme) private var scheme
+    @Environment(AppModel.self) private var model
     @State private var mood: UInt32?
 
     var body: some View {
@@ -637,6 +644,13 @@ private struct FeaturedPage: View {
                     }
                     .buttonStyle(.accent)
                     Button(action: onOpen) { Label("More info", systemImage: "info.circle") }.buttonStyle(.tonal)
+                    // The icon alone: a third labelled button does not fit a
+                    // phone's row.
+                    Button { model.setOnList(title, !title.onList) } label: {
+                        Image(systemName: title.onList ? "checkmark" : "plus")
+                    }
+                    .buttonStyle(.tonal)
+                    .accessibilityLabel(title.onList ? "Remove from My List" : "Add to My List")
                 }
                 .padding(.top, 12)
                 if let episode = resume?.episode, episode.resumeAt != nil, let progress = episode.progress {
@@ -705,8 +719,16 @@ private struct ContinueCard: View {
 struct PosterTile: View {
     let title: TitleRecord
     var folded = 0
+    /// `New`, `3 new`, or an airing show's countdown, at the top left.
+    var badge: String?
     @Environment(\.scheme) private var scheme
 
+    init(title: TitleRecord, folded: Int = 0, badge: String? = nil) {
+        self.title = title
+        self.folded = folded
+        self.badge = badge ?? title.badge
+    }
+
     var body: some View {
         VStack(alignment: .leading, spacing: 0) {
             RemoteArtwork(title.posterUrl ?? title.backdropUrl, title.displayName, fallback: title.thumbnailSource)
@@ -724,6 +746,16 @@ struct PosterTile: View {
                             .accessibilityLabel("and \(folded) more")
                     }
                 }
+                .overlay(alignment: .topLeading) {
+                    if let badge {
+                        Text(badge)
+                            .textStyle(.labelSmall, semibold: true)
+                            .foregroundStyle(scheme.onPrimary)
+                            .padding(.horizontal, 6).padding(.vertical, 2)
+                            .background(scheme.primary, in: RoundedRectangle(cornerRadius: Corner.standard))
+                            .padding(6)
+                    }
+                }
             Text(title.displayName).textStyle(.bodyMedium, semibold: true).foregroundStyle(scheme.onSurface)
                 .lineLimit(2).padding(.top, 6)
             // Two lines, not one: at a large text size "2023 · 7 episodes"
@@ -736,6 +768,12 @@ struct PosterTile: View {
 }
 
 extension TitleRecord {
+    /// `Ep 8 · in 2 d` for a show whose next episode is still to air.
+    func countdown(now: Int64 = Int64(Date().timeIntervalSince1970)) -> String? {
+        guard let at = nextAiringAt, at > now, let episode = nextEpisode else { return nil }
+        return airingCountdown(episode: episode, at: at, now: now)
+    }
+
     /// "2023 · 11 episodes", or "1988 · Film" — never "1 episodes".
     var caption: String {
         let count: String

ios/ProtonStream/UI/TitleView.swift

@@ -251,6 +251,10 @@ struct TitleView: View {
             .disabled(playlist.isEmpty)
             .padding(.top, 16)
             HStack(spacing: 0) {
+                TitleAction(icon: title.onList ? "checkmark" : "plus", label: "My List") {
+                    model.setOnList(title, !title.onList)
+                }
+                .accessibilityValue(title.onList ? "On My List" : "Not on My List")
                 // Only where it would do something different: an unstarted show
                 // already starts at the beginning.
                 if upNext?.resumeAt != nil || title.watchedCount > 0 {