That's the partial win here - repo restored with tests referencing the RIAA related videos removed but the code dealing with the rolling cipher itself still in

That's the partial win here - repo restored with tests referencing the RIAA related videos removed but the code dealing with the rolling cipher itself still intact. And next time youtube makes one of their frequent changes to their website the extractor will break in some way. Somebody will work to fix it and make use of the same tests, only now some of them won't be in the public codebase.