Stop peddling that stupid lie already. They didn’t use any key period; we literally have backups of the entire GPL source code will all of the commit history dating all the way back to August 30, 2013, stop spewing bullshit out your mouth.
You had to rip your own key from your own legally purchased switch hardware using legally protected homebrew tools and manually add it to Yuzu configs.This process is protected under Section 107 of the U.S. Copyright Act.
Under the fair use doctrine in Section 107, modifying your own legally purchased console hardware and running homebrew software for personal, non-commercial use has been considered a lawful fair use in certain legal precedents, even if it requires circumventing the console’s technological protection measures (TPMs) as its considered non-profit, educational or transformative use, as described in the fair use doctrine of Section 107.
Section 107 of the Copyright Act establishes the fair use exception, which allows for the reproduction of copyrighted works for purposes such as “criticism, comment, news reporting, teaching, scholarship, or research”.
Clean Room design reverse engineering for the purpose of creating an Emulator falls under “research” as listed by section 107 and independent creation as protected by existing judicial precedents.
Section 107 is intended to restate the present judicial doctrine of fair use, not to change, narrow, or enlarge it in any way.
Meaning Clean Room design reverse engineering as independent creation & modifying your legally purchased hardware with homebrew tools as fair use being protected by existing judicial precedents is also in turn protected by Section 107.
And the Twitter thread had the sources
Twitter doesn’t allow us to reverse the thread, kindly link the exact source you’re referring to.