qmk_firmware/keyboards/8pack/rev12/info.json

{
    "usb": {
        "device_version": "0.0.2"
    },
    "layouts": {
        "LAYOUT": {
            "layout": [
                {"x":0, "y":0, "matrix": [0, 3]},
                {"x":1, "y":0, "matrix": [0, 2]},
                {"x":2, "y":0, "matrix": [0, 1]},
                {"x":3, "y":0, "matrix": [0, 0]},
                {"x":0, "y":1, "matrix": [1, 3]},
                {"x":1, "y":1, "matrix": [1, 2]},
                {"x":2, "y":1, "matrix": [1, 1]},
                {"x":3, "y":1, "matrix": [1, 0]}
            ]
        }
    }
}