qmk_firmware/keyboards/ymdk/ymd09/info.json

{
    "keyboard_name": "YMD09",
    "url": "https://www.aliexpress.com/item/4000510880374.html",
    "maintainer": "kaeltis",
    "width": 3,
    "height": 3,
    "layouts": {
        "LAYOUT": {
            "key_count": 9,
            "layout": [
                {"label": "7", "x": 0, "y": 0},
                {"label": "8", "x": 1, "y": 0},
                {"label": "9", "x": 2, "y": 0},
                {"label": "4", "x": 0, "y": 1},
                {"label": "5", "x": 1, "y": 1},
                {"label": "6", "x": 2, "y": 1},
                {"label": "1", "x": 0, "y": 2},
                {"label": "2", "x": 1, "y": 2},
                {"label": "3", "x": 2, "y": 2}
            ]
        }
    }
}