I use a variety of devices capable of running the Mopidy music server, such as Raspberry Pi, Minnowboard Max and NUC. However it’s alway interesting to see how tiny a Mopidy server can be. 
So, I tried to enable Mopidy and Mopidy-Spotify on the Edison Mini Breakout Board, and it works; follow my how-to here: http://anil.se/?p=61
/Anders