To be clear, fuck Nintendo, but I wouldn’t be surprised in the least bit to find out that Yuzu was using proprietary information to make so much progress so quickly. In fact, I’ve long assumed that they did. Many details of these suits will never come to light, but it would easily explain how Nintendo was able to take down forks like Suyu so quickly as well, if they can prove that it wasn’t clean room reverse engineered.
There is no way to legally buy their ROMs anymore. You can only rent them in perpetuity. When they did sell them, they didn’t forward port your purchases to their next device, which is hilariously stupid, and you know they’d take you to court for dumping those same ROMs to your PC to organize, customize, and play the way you like them. If they just sold these things DRM-free on a web site for me to put in Emulation Station, we wouldn’t be having this discussion.