Banana Patcher is able to apply on-the-fly Preloader patches to System Menu without installing anything to the NAND. Some of the code was taken from Waninkoko's Menu Patcher.
I've been working on making a wheel controller with arduino, 3d printed round knob, and a potientometer.to play breakout and games like that. Kinda of like the old Atari 2600 controllers.