redesign

.env.example

@@ -29,6 +29,11 @@ WORKSPACE_SECURE_COOKIE=0
 # <ssh-ed25519 ...>` in the app, then `sshfs -P <port> anything@host:/ mnt/`
 # (the username is ignored — only the key decides who gets in).
 #
+# On the mount, `mkdir` at the root makes a space and anywhere else a folder;
+# a new `.md` file is a new document. A leading `# Heading` is the document's
+# title. Editor temp, swap and backup files are kept in memory for the session
+# only, and renaming one onto a `.md` name saves it into that document.
+#
 # Under Docker, bind 0.0.0.0 (not 127.0.0.1) as the app listens inside the
 # container — the host-side address in compose.yml's `ports:` is what
 # actually restricts who can reach it.