Hey!
Congrats on Rune Audio, amazing project.
I'm using the 0.3 beta on a Raspberry Pi 1 with a C-Media USB soundcard - all works OK, apart from a few bugs here and there. The biggest one for me now (apart from AirPlay not working, but I see there's a topic for it already), is that you can't add web radios. I added Soma.FM with http://somafm.com/m3u/groovesalad.m3u as URL, and I get a confirmation it is added all the time, but it doesn't show up on the web radio list, that actually shows a "(1)" item count. Re-adding it always shows the success confirmation toast, but no dice on it appearing on the list.
I enabled devmode, and did a git pull, still no show. Hope this helps debugging it.
Cheers