I installed mopidy on my Sailfish phone (Oneplus One with Community build 2.2.0.29). This in order to use Mopidy-Iris to be able to use Spotify.
It sort of works, haven't tested it much. Spotify can be used and the tracks are playing. But it is a lot of dirty commandline work and building and installing takes a lot of time. In the end you can start mopidy from the commandline and use Iris using a browser.
First install Mopidy and Mopidy-Iris. (as root (devel-su))