An 8BitDo Switch controller adventure

Recently I wanted to play Splatoon on PC using a gyro-based game controller rather than the large and awkward Wii U gamepad. Additionally I needed a replacement for my assortment of controllers in various states of jank and wear. After asking around on Fedi, I ended up ordering an 8BitDo Ultimate 2C BT controller. This decision set me down a rabbit hole of firmware research and hardware modding.