qmk_firmware/keyboards/atreus/astar_mirrored/keyboard.json

{
    "matrix_pins": {
        "cols": ["B7", "D6", "F7", "F6", "B6", "D4", "E6", "B4", "B5", "C6", "D7"],
        "rows": ["D0", "D1", "D3", "D2"]
    },
    "diode_direction": "COL2ROW",
    "processor": "atmega32u4",
    "bootloader": "caterina"
}