qmk-firmware/keyboards/ckeys/nakey/info.json

{
  "keyboard_name": "naKey",
  "url": "",
  "maintainer": "qmk",
  "width": 4,
  "height": 5,
  "layouts": {
    "LAYOUT_numpad_5x4": {
      "layout": [{"label":"Num Lock", "x":0, "y":0}, {"label":"/", "x":1, "y":0}, {"label":"*", "x":2, "y":0}, {"label":"-", "x":3, "y":0}, {"label":"7", "x":0, "y":1}, {"label":"8", "x":1, "y":1}, {"label":"9", "x":2, "y":1}, {"label":"4", "x":0, "y":2}, {"label":"5", "x":1, "y":2}, {"label":"6", "x":2, "y":2}, {"label":"+", "x":3, "y":1, "h":2}, {"label":"1", "x":0, "y":3}, {"label":"2", "x":1, "y":3}, {"label":"3", "x":2, "y":3}, {"label":"0", "x":0, "y":4, "w":2}, {"label":".", "x":2, "y":4}, {"label":"Enter", "x":3, "y":3, "h":2}]
    }
  }
}