pls someone vibe code a global live heatmap that shows bitchat geohash activity

nak req -k 20000 --stream \
"wss://relay.damus.io" \
"wss://nos.lol" \
"wss://relay.primal.net" \
"wss://offchain.pub" \
"wss://nostr21.com" \
| jq -r '{
geohash: (first(.tags[]? | select(.[0] == "g") | .[1])),
nickname: (first(.tags[]? | select(.[0] == "n") | .[1])),
msg: .content
}'