qmk_firmware/keyboards/handwired/co60/rev6/info.json

{
    "keyboard_name": "CO60 rev 6",
    "usb": {
        "device_version": "6.0.0"
    },
    "processor": "STM32F303",
    "bootloader": "stm32-dfu",
    "board": "QMK_PROTON_C"
}