qmk-firmware/keyboards/matchstickworks/southpad/info.json

{
    "keyboard_name": "SouthPad",
    "url": "",
    "maintainer": "MatchstickWorks",
    "layouts": {
        "LAYOUT_numpad_6x4_southpaw": {
            "layout": [
                {"label":"Bksp", "x":0, "y":0},
                {"label":"=", "x":1, "y":0},
                {"label":"(", "x":2, "y":0},
                {"label":")", "x":3, "y":0},

                {"label":"-", "x":0, "y":1},
                {"label":"*", "x":1, "y":1},
                {"label":"/", "x":2, "y":1},
                {"label":"Num Lock", "x":3, "y":1},

                {"label":"9", "x":1, "y":2},
                {"label":"8", "x":2, "y":2},
                {"label":"7", "x":3, "y":2},

                {"label":"+", "x":0, "y":2, "h":2},
                {"label":"6", "x":1, "y":3},
                {"label":"5", "x":2, "y":3},
                {"label":"4", "x":3, "y":3},

                {"label":"3", "x":1, "y":4},
                {"label":"2", "x":2, "y":4},
                {"label":"1", "x":3, "y":4},

                {"label":"Enter", "x":0, "y":4, "h":2},
                {"label":".", "x":1, "y":5},
                {"label":"0", "x":2, "y":5, "w":2}
            ]
        }
    }
}