qmk_firmware/keyboards/keebio/nyquist/rev3/info.json

{
    "keyboard_name": "Nyquist Rev. 3",
    "usb": {
        "pid": "0x3156",
        "device_version": "3.0.0"
    },
    "backlight": {
        "pin": "B5",
        "levels": 7
    },
    "split": {
        "soft_serial_pin": "D0"
    },
    "processor": "atmega32u4",
    "bootloader": "qmk-dfu"
}