rich1.0Globe99 (npub147…paq44)https://nostr.now/npub147fp2j606qpfysp38phhzvempt7ewsdqwm6uww9uycp6tdvavu0s5paq44njumphttps://nostr.nowNot sure exactly what implementation he's using here, but there is a standard tag in Nostr to add a "geohash." The geohashing format has something of an arbitrary precision level; so you could be (say) 2000 mile radius, 200, 20, etc.