Cool that you can do that, but it sounds quite complicated. Wouldn't it be easier to get a Steam Deck or ROG Ally and install some emulators on it? I know a handheld PC would take more room than a DS controller, but it will also be a more powerful and capable gaming device.
Please excuse my bad English.
Currently gaming on a PC with an i5-4670k@stock (for now), 16Gb RAM 1600 MHz and a GTX 1070
Steam / Live / NNID : jonxiquet Add me if you want, but I'm a single player gamer.