It took me much longer than I anticipated to Implement PRs in ngit because its hard to get a good UX. If you cant write to the repositories grasp servers (or they don't list any) you have to write to another grasp server. This involves selecting a grasp server (which is hard to do without hardcoded defaults, although WoT based 'user grasp list' is possible but filtering based on whether they are likely to accept your data might a challenge). Then it needs to send a repo annonucement with a 'personal-fork' tag (to prevent it from appearing like you own the project) and push the entrire repo there. If its a big repo that could be 1gb push.

Once there are more (and reliable) grasp servers available and most nostr git repositories are primarily using them I think it will work much better.