ScarletNX

Yes. The project distributes no game data — you supply your own copy or dump. Every project in this scene works this way, and it is what lets them stay publicly hosted on GitHub.

This is an emulator: it recreates the whole console in software and runs the original game unmodified. It asks more of your machine than a native port, but it serves the console's entire library rather than one game.

Native ports and recompilations skip CPU emulation entirely, so they are usually far lighter than an emulator for the same console. With no published measurement for this project, though, any estimate would be guesswork — test it on your own machine.

No release has been published, so there is nothing to say which systems it runs on. The game originally shipped on Nintendo Switch.

The project is public and open source, maintained by scarletnx, and contains nothing from the commercial game. Responsibility for the game copy you use is yours — which is why the developers require you to supply your own.