- Startup banner: FigletText + capabilities panel + note stats with status dots
- JSON cache at ~/.cache/noz/notes.json for instant startup
- Cache-first loading: show REPL immediately, refresh notes in background
- Timestamp in stats line (e.g. 'vor 5 Min.') for data freshness feedback
- Ctrl+C in idle exits REPL gracefully; during command cancels only the request
- Per-command CancellationTokenSource so cancel does not kill the session
- Tab completion: command-aware (cd only suggests folders)
