A nostr based Payjoin upgrade that does not require the sender or receiver to run their own server.
This proposal suggests a new process for exchanging the PSBTs between the two parties participating in a Payjoin. The fundamental protocol stays unchanged and can be found here. Using the novel network nostr would allow participants to utilize a decentralized communication platform to coordinate their Payjoin. Utilizing nostr DMs an end-to-end-encrypted communication protocol between to parties we can create a workflow which is secure and blends into already existing DMs.