Once again. GitHub is down. As expected at least once a month. [0] Some companies and open-source organisations who are self-hosting aren't affected since they already migrated off of going all in on GitHub [1] or they have a self-hosted failsafe that they can use in case GitHub goes down [2].
As I said before, going all in on GitHub still makes no sense.
[0] https://news.ycombinator.com/item?id=31152518