qmk_firmware/keyboards/6ball/info.json

{
    "keyboard_name": "6-Ball",
    "url": "",
    "maintainer": "qmk",
    "width": 3,
    "height": 3,
    "layouts": {
        "LAYOUT": {
            "layout": [
                {"x":0, "y":0.5},
                {"x":1, "y":0},
                {"x":2, "y":0.5},

                {"x":0, "y":1.5},
                {"x":1, "y":2},
                {"x":2, "y":1.5}
            ]
        }
    }
}