I use it for multiroom audio with Spotify. Main node is a random low power x86 box which doubles as my torrent server, and the only one client is an old atom netbook with 1gb ram, both hooked up to speakers. The flat is quite small so it’s more than sufficient, I just wanted more even loudness distribution.
I have some stability issues with it, but to be honest it might be the hardware’s fault too. I’d love to build a uniform set of all-in-one nodes with raspberry pis/batteries/speakers tho.
Screw M.2, I want to use my enterprise grade 7TB U.2 Kioxia drive in my 50 bucks Chinese phone, I just can’t live without it!