Feels like Apples already giving up on the Vision Pro, not sure Android should even put resources into this

My personal setup for 4 rooms worth of speakers is a rpi with a Hifiberry hat running debian with Mopidy. I use the Iris plugin for a front end and i mount my music directory via cifs on each pi

If you need a lightweight pdf viewer with no frills, muPdf on Fdroid is perfectly cromulent