Nostr really feels to me like the blockchain: An incredible novel solution desperately in search of a problem to solve. The engineering behind this is neat, but I have no idea why this is useful.
I found Ryabitsev's 2019 meditation [0] about maybe using git with secure scuttlebutt interesting (though not terribly compelling). Ryabitsev's fantasy scenario involves a developer exchanging git patches for a particular project via phones, to a laptop. Because that person uses secure scuttlebutt, the bug tracking thread is part of the enabling software, rather than out of band. I am of the impression that Ryabitsev…
https://scuttlebot.io/apis/community/git-ssb.html
Git-ssb went far beyond just sending and receiving patches. You could actually clone, pull, and push a repo between your friends and your friends friends.