I wonder if it would be somehow possible to make use the extremely great osmand offline maps app.
Specially when it is about hiking , biking , skiing , boating , flying etc. there is nothing comparable out there to osmand imho. Topgrapic maps with hill shades, contour lines and navigation profiles for all ways of mean - everything extremely customizable - all offline!
With Osmand recently made custom packages/plugins available it should be possible to bring the meshtastic location data into osmand with a little plug in if Iโm not totally wrong.
Also Osmand already supports โonline gps trackerโ so the function (to show people/trackers on the map) is already present
And I just found this useful github post