GitHub - roballey/OSM_Maps_For_Garmin: Maps for Garmin GPS units generated from OpenStreetMap data. Includes all the configuration files used to generate the Garmin maps. Can build non-routeable images (suitable for Garmin Edge 520
OSM Map On Garmin/Using POIs from OSM along with Garmin Maps - OpenStreetMap Wiki
MyOsmTopo Karten für Garmin
OpenStreetMap for Garmin | EIF-services
Conversion of OpenStreetMap OSM files to IMG files compatible with Garmin GPS