qmk-firmware/keyboards/acheron/apollo/87h/gamma/info.json

{
    "keyboard_name": "Apollo87H rev. Gamma",
    "usb": {
        "pid": "0x8774",
        "device_version": "0.0.3"
    },
    "matrix_pins": {
        "cols": ["B3", "A15", "A10", "A8", "B14", "B12", "B10", "B1", "B0", "A7", "A4", "A5", "A6", "C15", "A0", "A1"],
        "rows": ["C14", "C13", "B9", "B4", "A3", "A2"]
    },
    "diode_direction": "COL2ROW",
    "processor": "STM32F411",
    "bootloader": "stm32-dfu"
}