- What's next is the server's: state.advance counts down (10 s) when the media finishes with an Up next item first, holds while its performer or warm source is gone, and sets queuePlay at its end; cancel is shared, a seek or swap ends it; the server skips items nobody can put up. Shared rules in core whats_next.dart; the app's janitor, per-screen countdown and end-of-episode card are gone. - The continuation (next Jellyfin episode, next file of a local show with its gaps) is an auto item under "Continues with", prepared like Up next's first item. - Watch tracking by time In (D3): only time played while this viewer is in counts; away, paused, held, jumps and stalls never do (P7, P9). WatchTracker + device WatchHistory (files, links); Jellyfin progress reads the same watch; records are the AniList seam. - A server restart no longer loses what played: apps hold their media and one offers it back (swap.restore, first offer wins), Up next is re-added, the source re-feeds, and the watch carries on. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>