My own self hosted audio journey ended with Lyrion Music Server[0], formerly Logitech Music Server. It is now open source and run by the community.
There are plugins for Qobuz, Tidal, Spotify, local radio, song lyrics, and more. It also does great multi-room audio syncing via DLNA, Airplay, and Squeezelite. I recently setup transcoded streaming so I can listen to my library remotely on Apple Carplay at a reduced bitrate.
It's certainly not perfect, but more perfect than any other open or commercial platform I've trialed. Can't recommend it enough!