

OSM is just pronounced open street map or as an acronym- O.S.M.
The tilde isn’t from OSM, it’s from OsmAnd (the navigation app), and I thing it’s used to communicate whether you’re running the version from f-droid, or the play store version? I agree that’s confusing and makes for an awkward name though
Something something, the real magic was the… firearm-some-person-bought along the way…?