IIUC the geohash description provided here should work: https://github.com/sandwichfarm/nostr-geotags?tab=readme-ov-file#example-response --> the driver could mention the radius they want to be available at, so can the person searching, ratings could be based on WoT. What do you think nostr:npub1arkn0xxxll4llgy9qxkrncn3vc4l69s0dz8ef3zadykcwe7ax3dqrrh43w ?

nostr:note1zhps6wp7rqchwlmp8s9wq3taramg849lczhds3h4wxvdm5vccc6qxa9zr8

You could call it: "Killer Rides"