sync_replay_project/docs/ROADMAP.md

Roadmap

Backlog and epics, in order. Done work lives in git history. Check an item off by deleting it in the same commit as the code. Wire changes also edit PROTOCOL.md.

Backlog

1. Ready gate and swap (protocol bump). Bug: three in a server, a file relayed from one; two readied and it played, the third (not ready) was dragged along frame by frame. Members present at a swap must all count for the gate (a joiner after the swap still counts only once ready); a swap keeps everyone's ready flag, with a per-user "Unready when the video changes" setting. Shared auto-skip lives here too (below).

2. Quick UI

   • Tab no longer moves focus (Tab toggles chat, then Space pressed a random button); Space is always ready outside text fields.
   • Opening chat focuses its field; Esc/Tab hands focus back.
   • Unread badge on uosc's chat button; an unread hint in fullscreen.
   • Your avatar in the strip the same size as the party's.
   • Chat panel: people's messages only, a toggle shows activity.
   • Skip OP/ED: no "Skip 1:30" guess when the file has chapters (a missing OP chapter is on purpose); the pill shows for the first 5 s of the range and again when the mouse moves (like the controls).
   • Auto-skip OP/ED: a server-wide setting in state (anyone toggles it, the feed says who); exactly one client seeks (the media's swapBy, else the lowest fresh member id), only for real ranges (segments or OP/ED chapters), as a normal user seek.
   • Volume above 100% like mpv.

3. Drag & drop and paste (fox_utils): drop or Ctrl+V anywhere; a small card asks how to open it (file: put up / add its folder to Files; link: put up with the link modes; image: the avatar editor when open).

4. Files: detected series groups start collapsed (big libraries); next episode from Files (by parsed episode, with the countdown). Later: tracking for file series.

5. yt-dlp (epic): players that open links themselves use mpv's ytdl hook (bundled on Windows); then relay of single-file formats; then a resolver for the Link preview (title, thumbnail, duration).

6. AniList account: sign in (OAuth via a localhost callback), "My list" filter on the Schedule; today's "Following" (AnimeFlow's monitored shows) becomes "On the server".

7. Ops: watch-together-server --upgrade (a VPS has no GTK for the app's updater); check shaders on Windows; the relay e2e "source drops uncleanly and resumes" fails about half the time under the full suite.

8. Windows: first real use. CI builds and publishes watch-together-<ver>-windows-x64.zip (libmpv bundled) and runs the updater tests on NTFS; a friend has joined from it. Still unchecked: fullscreen controls, hosting (firewall prompt), in-app update from one release to the next. The rest of the desktop tests are not in CI.

9. Relay follow-ups (see ARCHITECTURE "Relay"). First real use: owner's PC -> VPS -> friend, Jellyfin and a file. Then:

   • Source takeover: when the source leaves, another member with an account on that Jellyfin (or the same file: name, size, hash) takes over instead of the buffer running dry.
   • "Bob can't open this link — relay it?": offer the relay to whoever put a direct link up when a viewer's player fails to open it.
   • Show who is relaying and how fast in the member list; warn the source when its upload is below the media's bitrate.

10. Jellyfin (epic, below).

11. Smaller items

• Video output robustness: if media_kit's hardware path regresses to software (see ARCHITECTURE, Media: render mode), vendor a media_kit_video fix that builds the EGL display from GDK's native display. The video freeze after GPU idle is not explained by this; next suspect is media_kit's context switching on the raster thread with NVIDIA.
• Link conveniences: a link swap in session updates the remembered media; show the open link with an open-in-browser button.
• Time UI: remaining time, scrubber preview.
• mpv / mpv.net shortcut parity.
• Chaos suite: host drop 5 s / 30 s, viewer stall, 20-seek storm, long outage with cache exhaustion (tool/shaper.dart --kill-after); assert no OOM, no stuck session, drift recovers.
• Chat history pane (today: activity log only).
• Images in chat (paste a screenshot; server memory only): possible, not wanted yet.
• HTTP: move the app's clients (Jellyfin, AniList, AnimeFlow, updater) to dio from fox_utils when touching them, for retries/interceptors.
• The state broadcast carries the full media URL, which can include an api_key (recognised Jellyfin links become refs; other links do not).
• TLS: document a reverse proxy in front of the server.
• Playlist: queue-add, queue-skip, auto-advance like a swap.
• Sidecar subtitles.

Epic: Jellyfin

What is left (the rest is in ARCHITECTURE.md, "Jellyfin in a session"):

• Queue: put several library items (a season, a pick list) up as a playlist that advances like a swap (shares queue-add / queue-skip with the backlog's Playlist item).
• Auto-advance cancel for everyone: today Cancel is per screen (the designated swapper's Cancel stops the swap; a seek stops all). A shared cancel needs a wire message.
• Sidecar (external) subtitle streams of Jellyfin items: only embedded tracks are mapped to mpv today.

Deferred

P2P, Android. Never: transcoding, web clients.