qmk_firmware/keyboards/dumbpad/info.json

{
    "keyboard_name": "dumbpad", 
    "url": "", 
    "maintainer": "qmk", 
    "width": 5, 
    "height": 4, 
    "layouts": {
        "LAYOUT": {
            "layout": [
                {"label":"7", "x":1, "y":0}, 
                {"label":"8", "x":2, "y":0}, 
                {"label":"9", "x":3, "y":0}, 
                {"label":"BSPC", "x":4, "y":0}, 
                {"label":"4", "x":1, "y":1}, 
                {"label":"5", "x":2, "y":1}, 
                {"label":"6", "x":3, "y":1}, 
                {"label":"ESC", "x":4, "y":1}, 
                {"label":"1", "x":1, "y":2}, 
                {"label":"2", "x":2, "y":2}, 
                {"label":"3", "x":3, "y":2}, 
                {"label":"TAB", "x":4, "y":2}, 
                {"label":"LMOUSE", "x":0, "y":3},
                {"label":"TT(2)", "x":1, "y":3}, 
                {"label":"0", "x":2, "y":3}, 
                {"label":".", "x":3, "y":3}, 
                {"label":"ENT", "x":4, "y":3}
            ]
        }
    }
}