i found an OpenNas firmware – http://forum.zaphot.org/viewtopic.php?t=39&sid=e4ef4fdcbcff2596547a700985f1dffb
Will this do?
Probably. I don’t speak Deutsche, so I’m not sure if that has support for optware, but at least you can get your own programs running on it.
If they move to optware, then it will be easy. Otherwise, you’ll need to cross-compile (or ask on the forums for someone to do it).
I think you’ll find that once there is a hacked version, a build of firefly/mt-daapd will follow quickly. Seems like it’s one of the first “luxury” software items ported on nas machines, after web server, ssh, etc.