pico-rectangle VS Pico_RGB_LCD_GCC

Check out https://github.com/JulienBernard3383279/pico-rectangle

That you don't have to worry about that being the case. If you want to see the nitty gritty of how it functions, here is the pico rectangle ultimate DAC algorithm

My main concern is power. The rp2040+ supports simultaneous charging and use, but I also want to make sure I don't accidentally leak power back up the cable (especially to the gamecube, since this could break it). I followed the circuit diagram for the usb c breakout, but since I am using a battery pack I have some concerns. There is also the rp2040+ schematic available online.

if you're playing on console it's a different story, you'd have to either get a prebuilt that works on the gamecube or use something like pico-rectangle.

Pico Rectangle - Arte

It's easy enough to write your own firmware for a box controller, the software is already out there on Github. So it's not enough even if all of Hitbox, Hax, Goomy, Greg Turbo, and Panda are all on board.

- I used Kicad 6.0 to design it, and I have the files posted here