qmk-dactyl-manuform-a/keyboards/handwired/postageboard/info.json

{
    "keyboard_name": "Postage Board",
    "url": "",
    "maintainer": "LifeIsOnTheWire",
    "width": 1,
    "height": 1,
    "layouts": {
        "LAYOUT": {
            "layout": [
                {"x":0, "y":0},
                {"x":1, "y":0},
                {"x":2, "y":0}
            ]
        }
    }
}