Just had to find out: RuneAudio does not like manually edited /etc/mpd.conf
- Edit /etc/mpd.conf manually
- Choose MPD from Menu
- Get warned about the manual change => edit /etc/mpd.conf in browser
- Save
- /etc/mpd.conf is not as expected (haven't investigated further)
- Choose MPD from Menu
- Browser shows UI for editing config (not textarea) => manual edits are gone
Not a big thing as you won't edit mpd.conf every day, but annoying nevertheless.
Having the possibility to edit mpd.conf as text in the browser is a nice feature!