The geo: URI scheme seems like a good approach to store in nostr events, which can later be combined with a reverse Nomatim lookup to resolve it to, for instance a local business: https://nominatim.openstreetmap.org/ui/reverse.html?lat=53.56881&lon=9.96773&zoom=18

The issue with nodes is, what happens when a local business moves? Afaik there are two approaches, some people prefer keeping the node with the building and others with the business.

nostr:npub1arkn0xxxll4llgy9qxkrncn3vc4l69s0dz8ef3zadykcwe7ax3dqrrh43w what's your view on all this?