It would be good to have working GPS support. We need GPSd and some kind of user application for that.
a) gpsd is easy:
stty 9600 < /dev/ttymxc2 sudo gpsd /dev/ttymxc2
(I don't have good enough reception to actually have a fix indoors, so not completely tested).
b) GUI application would be good. Default possibility is foxtrotgps. It works okay with remote X, but has bad problems rendering on internal screen; probably related to gtk2.
Fortunately, osmgpsmap has bindings for Rust and is easy to use: example is:
(I have adaptation that works on l5, not yet in tree)