Should use that leak of GitHub source code from some years back to fire up an `.ru`-based clone at this point. These people are clowns.
Why would one need Github source code to clone what git does, even if there were not already several dozen off-the-shelf self-host solutions (Gitlab says hi)?
You don't even need github source code. You could spin up a gitlab community server (or Forgejo or 50 other options) today to host these projects, but your domain/server provider will shut you down in two hours.
And if that doesn't happen, wait till you find a legal letter sent from Nintendo lawyers in your mailbox.
Unless you want to play hide and seek like z library or pirate bay which will become a full time job.