I Made a Plugin to Fix Quod Libet's Playlist Handling

Quod Libet is, as far as I've been able to find, the best native Linux music player. My biggest issue with it was the way playlists are handled. Coming from MusicBee on Windows, my playlists were nicely managed and maintained in a folder, which I could then sync to my other devices automatically along with the rest of my music library (via syncthing or whatever you use).

By default, Quod Libet has a few glaring issues with playlists:

• Playlists can be imported but are only maintained in QL's internal files.
• A plugin is needed to export playlists, and even with the plugin, you must manually export your playlists every time you add or remove a song, or change the order.
• When a file has been moved or deleted, Quod Libet has no handling for this by default. It simply ignores that song without giving any type of warning or error.
• Because of the above issues, syncing your playlists and library with other devices is a very manual pain in the neck.

I vibe-coded a plugin to fix all of the above and found it has vastly improved my experience. Please take a look, and hopefully it helps you as it has helped me.