This message has been posted on their discord server yesterday, currently the app is being worked on and has no definitive ETA. We probably have to use other forks until that. I don’t know whether I can share the discord server’s link so not sharing that until a mod gives heads up.
GitHub (and everyone else) is required to follow the process laid out DMCA takedown requests. The uploader just has to submit a counterclaim, and they can put it back unless they actually go to court and file a lawsuit.
The whole process is dictated by the DMCA.