Nintendo is one of the worst companies that always want to set an "example" about the DMCA. They don't realize they are fighting a battle they cannot win. Emulators are perfectly legal as long as the emulators don't contain any code that was in ownership from them.
That being said, I'm betting some of those forks were following the DMCA but Nintendo still shut them down. This is where copyright needs to be reevaluated.
I'm honestly not surprised they haven't gone after dolphin emulator since those devs contain the encryption keys to play the iso files.
So, I agree with your general points, but I think part of the reason Nintendo is so harsh towards Yuzu is because, as far as I'm aware, Yuzu does actually contain proprietary code from Nintendo.
My understanding is that the Yuzu team used a Switch development kit instead of reverse engineering the Switch as they had claimed, so the entire code is essentially tainted because it's unclear which parts came from the development kit and which parts came from true reverse engineering
Part of the problem is they apply Japanese copyright law to an international level. Wouod be cool if they hit the wrong target, got sued for trying to apply their laws to the world stage, and got matched each time they appealed until their war chest got drained dry
Based on your username and the fact you mentioned pushing commits to a project of such complexity I would assume you are not serious but in case you are, the point of the torrent is to keep the data available. You would have to download it and initialize a new repo with it and if you want you can host it wherever you like.
As another comment says, git is just the version control software. You mean a decentralized hub for sharing git repos I assume. Git hub/lab/whatever are just websites that share a link fundamentally. They also all store the data for your repo, but there's no reason that would need to be stored in the same place as the hub to find repos.
Yeah i tend to forget that github is in the US and their allmighty DMCA can be used to take down anything. i just have a hard time believing this shit would fly in the EU.