I have something early you can look at. Lots of todos, a small bugs/issues.

https://github.com/blakejakopovic/damus/commit/e27162b00fb10dcf2f02cc2fe533e1a09cb168aa

Basic testing endpoint (doesn't validate actual BLA content, just that something exists)

curl -I -H "Authorization: Nostr BLA"

Endpoint code: https://gist.github.com/blakejakopovic/2e8fa806e1b85c17411b66b55f3df4e8

nostr:note172de9jv7nthqj06eznqke0u7v3zngluz9j06rskrauf5kry4428s8d7haw