with all the other software out there in shocked some of them haven't gotten on to this?
i am currently using my squeezebox touch's built in LMS because I never wanted a PC running in my system all the time and at the time squeezeplug and custom NAS drive software's where just coming about
the 2nd hand cost of squeezeboxes are still quite high and now that spotify has stopped service for squeezeboxes I had it in my mind it was time to sell up and to move on
on the market i can only find
sonos - yes it works but its unrealistic cost and lack of having to connect to any nice hardware is letting the system down
Squeezebox - sadly logitech have stopped manufacture of new units and support from 3rd partys is slowly dropping off
Chromecast Audio - i dont have any experance of thease yet but apprently now support muliti player sync . output options are optical toslink or headphone output - not ideal but at a last rrsort i could possibly buy a few of thease and make some form of pi based storage system to hold my large collection of music files?
my pi experince is very much a biginner and oher than building a retropie games machine i havent done much.
support and documentation isnt great in my experance for the pi compared to some other projects i have played with in the past.
i have even built 2 of my own working and running megasquirt ecu's for the fuel injection and ignition system in my car