OK estimated 60-80. The author designed a board, called CANard, to help sniff and program on CAN bus on cars. This would have been handy for me a few months back as I was struggling with figuring out how to program Tire Pressure Sensors on my car. And instead of paying a dealer, could have maybe reverse engineered it and done it myself. The board hasn’t been pulished yet, but I will keep my eye out for it.
found the opensource project