I would like to request a feature to allow the aggregation of multiple playlists in a single higher order playlist.
My reasoning for this is, that I have multiple media sources (Plex for High quality stuff that is correctly tagged and navidrome for any low quality stuff and singles).
I have a playlist in plex that I keep synced to the app. I would now like to create a second playlist in navidrome and have an option to combine those two automatically. Creating the playlist directly in the app instead would prevent me from syncing it to other devices.
I think the best way to go about this would be to add a filter for smart playlists to include all songs from another playlists automatically.