To understand why this project is cool, you have to understand the "ExFat Tragedy." For years, Nintendo included a hidden "hotspot" in their system packages (firmware updates). If you inserted an SD card formatted as ExFat, the system would try to mount it. If that attempt failed in a specific way, it would crash the system.
You might ask: "If I have an unpatched Switch, why don't I just use a paperclip (RCM)?"
The "Pico" designation also intersects with the use of like the Raspberry Pi Pico and Luckfox Pico.
: The image is typically "burned" onto a USB flash drive using software like Win32 Disk Imager or Rufus.