That's the frontend code, it doesn't include the backend API services, which are closed source.
the backend (the AppView) can be found here:
https://github.com/bluesky-social/atproto/tree/main/packages...
there are various supporting services written in Go as well
https://github.com/bluesky-social/indigo
Which is what I said in the second sentence
the backend (the AppView) can be found here:
https://github.com/bluesky-social/atproto/tree/main/packages...
there are various supporting services written in Go as well
https://github.com/bluesky-social/indigo