qmk_firmware/keyboards/crawlpad/info.json

{
  "keyboard_name": "Crawlpad",
  "url": "",
  "maintainer": "colemarkham",
  "layouts": {
    "LAYOUT_ortho_4x4": {
      "layout": [
        {"label":"7", "x":0, "y":0},
        {"label":"8", "x":1, "y":0},
        {"label":"9", "x":2, "y":0},
        {"label":"+", "x":3, "y":0},
        {"label":"4", "x":0, "y":1},
        {"label":"5", "x":1, "y":1},
        {"label":"6", "x":2, "y":1},
        {"label":"-", "x":3, "y":1},
        {"label":"1", "x":0, "y":2},
        {"label":"2", "x":1, "y":2},
        {"label":"3", "x":2, "y":2},
        {"label":"*", "x":3, "y":2},
        {"label":"Fn", "x":0, "y":3},
        {"label":"0", "x":1, "y":3},
        {"label":".", "x":2, "y":3},
        {"label":"Enter", "x":3, "y":3}
      ]
    }
  }
}