Look into Emudeck, It does all the hard work for you, as well as emulation for everything that the steam deck can handle.

Just a heads up, the steam deck can run switch games, often better that the original hardware. If you own a copy of the game it’s legal to emulate on your device however you’d like.

I’m going to send you a message here in a little bit, I’d love to get this set up in a similar fashion.