Just shipped geohash-kit - a TypeScript library for building location-based Nostr apps. - Multi-precision g-tag ladders for geographic discoverability - REQ filters from coordinates + radius with neighbour ring expansion - Smart polygon coverage — cover any area with compact geohash sets - Parse g-tags from events, find the best precision match - Zero dependencies, 736 tests https://github.com/TheCryptoDonkey/geohash-kit #geohash #nostr #nostrdev #opensource