So I understand wanting to build emulators so that people can continue to play their old games after the hardware fails. But in building an emulator for a current generation console, it seems likely that much of the audience is just interested in pirating the games.
It doesn't matter what most people are doing, emulators are legal.
Good. If there's one company that deserves to have their stuff pirated, it's Nintendo.
The Switch hardware is so underpowered that most games run a lot better (no framedrops, higher resolution) on PC.