This might be of interest to anyone installing SailfishOS roms.

I've been playing around with a very good Moto G (falcon, 2013) SailfishOS conversion made by PiggZ.

Unfortunately GPS was not working at all, even when the main thread in XDA forums said it should.
Eventually I got it fixed by installing normal Cyanogenmod, and making sure that GPS was turned on and working, and then restoring a backup of my previous installation of SailfishOS on top of it.

It is quite possible that GPS had been never used with the Moto G device I had acquired, and Sailfish probably couldn't trigger it without Android proper first activating it. So if you get your hands on Nexus 5, make sure to check that all radios, gps and sensors have been activated before you flash it to Sailfish OS.