According to an official statement on Ryujinx’s Discord server, developer gdkchan was contacted by Nintendo and they were offered an agreement to stop working on the emulator project, and while the agreement wasn’t confirmed yet, the organization has been entirely removed.
By “enforceable,” I meant, “the reasonable legal means to follow up”.
So you wouldn’t comply with Nintendo in a similar position?
I would, but I live in a country that cares about IP laws.