qmk_firmware/keyboards/handwired/2x5keypad/info.json

{
    "keyboard_name": "2x5keypad",
    "url": "",
    "maintainer": "jmcameron",
    "width": 5,
    "height": 2,
    "layouts": {
        "LAYOUT": {
            "layout": [
                {"x":0, "y":0},
                {"x":1, "y":0},
                {"x":2, "y":0},
                {"x":3, "y":0},
                {"x":4, "y":0},

                {"x":0, "y":1},
                {"x":1, "y":1},
                {"x":2, "y":1},
                {"x":3, "y":1},
                {"x":4, "y":1}
            ]
        }
    }
}