I got it to run via Envision (3.1.0) on my HP Reverb G2 using Proton-CachyOS 9.0-20250402 slr. I got as far as testing youtube and that worked. I have not yet tested proper video playback. Controller motion was twitchy (not a HereSphere issue) so it was a bit of a challenge clicking on things. I need to figure out how to map network folders to it so that I can access my media for further testing. I am expecting codec issues.