Would anyone want to work together on this and split the bounty (unless someone else completes it first)? https://bountsr.org/code/2023/03/01/nostr-marketplace.html

0.1 BTC is 1 year living costs for me... But I don't think I could complete this on my own. I have experience with marketplace dev (bitejo.com) and some basic Nostr experience (nostr.bitejo.com). I made a digital download auto-fulfillment script before, but it was centralized (vs. a relay-client model) and used on-chain payments. I didn't work with custom post types, clients, Zaps, etc. yet.

I imagine it would be possible to create a custom post type for digital download listings (with an encrypted download link) and use the Zap feature to prove payment. Then (somehow) the digital download link is decrypted and presented to the buyer.