I dont like Music assistant. It never finds the right music to play always dumb remixes at the top.
So i continue with my own.
Snapcast/mpd setup
For every room i have 2 mpd players. One for music one for podcasts. (So that the music comes backup after a podcast is finished)
I have one general announcement mpd.
I have media player templates to bind all mpd players together to one snapcast client.
I can play radio local media and the last podcast.