Postr: Payjoin Using Nostr
Postr is a proof-of-concept for doing payjoin using Nostr.
Discussion
As long as you trust the person you're pay joining with. Sending someone a signed transaction with the sighash_none flag is a hell of a thing...
https://bitcoin.stackexchange.com/questions/4213/what-is-the-point-of-sighash-none
"That way the individual contributors don't need to know the destination address so long as they trust the coordinator."
#[2] A note about postr: Payjoin over nostr