qmk_firmware/keyboards/ploopyco/trackball/info.json

{
    "keyboard_name": "PloopyCo Trackball",
    "url": "",
    "maintainer": "drashna",
    "width": 8,
    "height": 3,
    "layouts": {
        "LAYOUT": {
            "layout": [
                {"x":0, "y":0, "h":2},
                {"x":1, "y":0.25, "h":1.5},
                {"x":2, "y":0, "h":2},
                {"x":3.5, "y":0, "h":2},
                {"x":4.5, "y":0, "h":2}
            ]
        }
    }
}