qmk-firmware/keyboards/bemeier/bmek/rev2/info.json

{
    "usb": {
        "device_version": "0.0.2"
    },
    "matrix_pins": {
        "cols": ["F6", "B0", "B1", "F7", "C7", "C6", "B6", "F1", "B2", "B3", "D6", "D3", "D2", "D1", "D0"],
        "rows": ["F4", "F5", "D7", "B5", "B4"]
    },
    "diode_direction": "COL2ROW",
    "processor": "atmega32u4",
    "bootloader": "atmel-dfu"
}