GitHub link to Nintendo’s claim - all the details you need are here
The emulator forks which are being taken down are as follows:
Despite this, the one fork that continues, and will continue without takedown is Ryubing - by Greemdev. This is created by an original member of the Ryujinx team. It’s safe, the code is beyond reproach (and violates zero laws or Nintendo code) and actually brings helpful updates.
Still…shitty news. And more indication that the Switch 2’s architecture will be damn similar to that of this current Switch. Them taking emulators down means the upcoming games have a solid chance of being emulatable on release. But…that’s my own (and others’) conjecture, so we’ll see when the time comes.
IIRC, part of the argument is that Switch games are encrypted, and the emulator uses real Switch keys to read the games. So Nintendo claims that by using official Nintendo Switch keys, it is violating Nintendo’s copyright and is subject to DMCA claims.
The argument is shaky at best. But the problem with DMCA is that combating it actually requires taking the claimant to court. So that’s a prohibitively long and difficult process, just to be able to go “hey Nintendo doesn’t actually have any claim here. Restore my repo.” Especially when Nintendo has a known history of drawing out long legal battles to exhaust defendants’ time+resources.
From my understanding the repos wouldn’t include the keys (or if they did then they definitely shouldn’t). But yeah I understand the long legal battle thing.