qmk-firmware/keyboards/handwired/k_numpad17/info.json

{
    "keyboard_name": "K-Numpad17",
    "manufacturer": "Handwired",
    "url": "",
    "maintainer": "qmk",
    "usb": {
        "vid": "0xFEED",
        "pid": "0x6060",
        "device_version": "0.0.1"
    },
    "processor": "atmega32u4",
    "bootloader": "caterina",
    "community_layouts": ["numpad_5x4"],
    "layouts": {
        "LAYOUT_numpad_5x4": {
            "layout": [
                {"x": 0, "y": 0},
                {"x": 1, "y": 0},
                {"x": 2, "y": 0},
                {"x": 3, "y": 0},

                {"x": 0, "y": 1},
                {"x": 1, "y": 1},
                {"x": 2, "y": 1},

                {"x": 0, "y": 2},
                {"x": 1, "y": 2},
                {"x": 2, "y": 2},
                {"x": 3, "y": 1, "h": 2},

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

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