boards.txt for producing uniquely named and PID'd Leonardo devices, designed for Simpit usage
Drop the hardware folder in your Arduino Sketches folder
the VID and PID are from https://pid.codes/1209/ and using the Lo-Hex 'testing' PIDs and can be extended within reasonable limits
!!!! This is only suitable for private project usage, if you want to sell something READ PID.CODES FAQ.
this is shared for sake of public value
menu structure from https://forum.arduino.cc/index.php?topic=418351.0
but the boards addition in that thread does not clear out the cached PID:Product assignment