qmk_firmware/keyboards/40percentclub/polyandry/promicro/keyboard.json

{
    "matrix_pins": {
        "cols": ["D1", "D0", "D4", "C6", "E6", "B4", "F4", "F5", "F6", "F7", "B3", "B2"],
        "rows": ["D7"]
    },
    "diode_direction": "COL2ROW",
    "processor": "atmega32u4",
    "bootloader": "caterina"
}