Tested working with

• MacOS 10.13.6 (17G10021) + dfu-programmer 0.6.2 + avr-gcc 9.2.0 + Arduino UNO R3
• MacOS 10.15.6 (19G2021) + dfu-programmer 0.7.2 + avr-gcc 9.3.0 + Arduino UNO R3

How to use

1. Edit file Joystick.c. Under static const command step[], keep "Setup controller" section. Edit under "Start"
2. make. This will generate Joystick.hex as well as a couple Joystick.* files
3. Connect Arduino to Mac
4. Bridge the reset pin with the ground on Arduino
5. ./upload Joystick.hex
6. (Optional) Save a copy of Joystick.hex. You could skip the make process and upload the hex file next time.
7. ./rmmake. This will clear the files from previous make.

Thanks to hoskinsw/SwShEggHatcher and all the way up to progmem/Switch-Fightstick