I recently passed my driving test and I need a music app that plays local files and can be controlled by google assistant for handsfree. I’ve been using AIMP for ages and its worked great but I can’t specify any songs or playlists via the assistant, I can only tell it to “play music on AIMP” and it plays whatever I was playing before. I would much prefer a FOSS app to do this but if there isnt one available that works with the assistant then it doesent have to be FOSS. If I can’t find an app that suits my needs spotify would probably be my only option but I’ve got a large library of music already downloaded and i’d much rather not pay for premium just for the ability to play my local files lol.
Once I rented a car with voice commands (not android, and Bluetooth. It was able to reproduce my music from my phone (using Vinyl from F-droid). I think it connects directly to some sort of API on the phone once it’s paired, so the music playback is controllable… YMMV.