That's just stealing the github html and css, no?
Discussion
not entirely, yes: same layout but entirely rebuild from scratch in tailwind and nextjs
ideally it'll get its own design once its more mature but right now lets get up to speed
the important part will be the nostr backend, not the frontend
here's the source code: https://github.com/NostrGit/NostrGit
Every git service has pretty much the same UI.