I haven't heard from anyone using this yet or had a chance to try it, but it looks like it's really coming along. The CLI looks pretty minimal in a thoughtful way:

Contributing seems super straightforward. You use the nostr:// remote helper and have some expectations around branch names:

git clone nostr://
git checkout -b pr/great-feature
git commit -am "improve the world"
git push -u

Then the maintainer initializes the nostr metadata stuff pretty simply too:

// announce on nostr
ngit init --identifier my-repo
// push to nostr and git server(s) via remote helper
git remote set-url origin nostr://

It's simple enough I suspect they'll be able to wrap all of this in a github-like gui at some point.