TorMatzAndren/jarri-spooty ? reverse-engineered prompt

Build me a self hosted app that lets me connect my Spotify account, paste a Spotify playlist or track link, and then find matching audio on YouTube and download it into a local library. I want it to work nicely for bigger playlists too, not just a few songs, and I want it to keep going in a stable queued way instead of trying to do everything at once.

Please include a simple workspace style UI where I can manage intake, see the archive of downloaded files, and inspect diagnostics for each track. It should show why a YouTube result was picked, what got rejected, and any download errors or retries. I also want login protection, Docker support, persistent local state across restarts, MP3 tagging with cover art, and a read only archive browser for the download folder.

If you need to, look up current docs online for Spotify auth or YouTube download handling so the setup is reliable.