RE: the "Plus Code" (aka "Open Location" code) system, which is lat/lng based and open source (managed by Google), but I don't think it's great for buildings wi

RE: the "Plus Code" (aka "Open Location" code) system, which is lat/lng based and open source (managed by Google), but I don't think it's great for buildings with hundreds of apartments in a single location, such as an apartment tower in NYC. This post - https://www.dcode.fr/open-location-code https://www.dcode.fr/open-location-code - describes how to convert from that code to GPS coordinates (GPS coordinates can be converted to/from a real-language address using the Google Maps Geocoding API (https://developers.google.com/maps/documentation/geocoding/overview https://developers.google.com/maps/documentation/geocoding/o...)