This could already be implemented with WebFinger
https://webfinger.net
...if anybody knew to use it.
dcs / dave
npub1cl…3rps5
2023-02-13 20:45:10 UTC
in reply to nevent1q…5qug
Author Public Key
npub1cldxy9f5shk0kxm90yk8nn3lum7wdmta3m6ndjcjr4aqcuewjt0sx3rps5Seen on
wss://nos.lol