USB Rubber Ducky like device with a Raspberry PI Pico
The files that are on the board are located in the Pico Board Folder.
Board Firmware is Circuitpython.
For Different Payloads see the Wiki of this Repository.
To edit the payload, enter setup mode by connecting the pin 1 (GP0) to pin 3 (GND), this will stop the pico-ducky from injecting the payload in your own machine. The easiest way to so is by using a jumper wire between those pins before pluging it into your own machine.
If you need the pico-ducky to not show up as a USB mass storage device for stealth, connect a jumper wire between pin 18 and pin 20. This will prevent the pico-ducky from showing up as a USB drive when plugged into the target computer.
Remove the jumper and the default mode is USB mass storage enabled.