So here are completely unsupported alpha images, with only the open source parts, aka vanilla Volumio.
2021-08-18, version 0.022
-Kernel: Linux 5.10.52-v7l+ (1:1.20210805-1)
armv7 – no pi0 support.
2021-07-29, version 0.021
-Kernel: Linux 5.10.52-v7l+
All current Volumio bugs
upnp is diabled
winbind is diabled
Volumio’s hard coded paths will probably trigger issue with Debian’s merged
Boot welcome QR is finicky
Certain plugins will fail, and modules will need recompilation
–This is just a fun test, please do not trouble the core devs with bug reports from this image!
–All currently known Volumio (core, UI, API) bugs will still be present, I didn’t change anything there.
—There might be even stranger bugs given how fresh bullseye is.
FWIF: Bullseye/sid has been my daily driver for some time now, but I have been using only with streaming sources (Spotify Connect, Webradio, RP, etc).
So caveat emptor - your mileage might vary.