I’m brand new to the Pi, and I’m stuck. I’ve got RetroPie up and running, but now I want to plug my arcade buttons directly into the GPIO pins. I’ve got the wiring mapped, but I need to get the software sorted. What should I be using? Adafruit used “retrogame” to do this, but I don’t know how to get these files onto the same install as RetroPie. Everybody seems to use usb boards for their arcade cabinets (so they can map 2 players), and all the tutorials are for hardware. I’m ready to throw the Pi out the fracking window.