qmk_firmware/keyboards/sixshooter/info.json

{
  "keyboard_name": "SixShooter",
  "maintainer": "qmk",
  "url": "https://geekhack.org/index.php?topic=70033.0",
  "width": 3,
  "height": 2,
  "layouts": {
    "LAYOUT": {
      "key_count": 6,
      "layout": [{"label":"K00", "x":0, "y":0}, {"label":"K01", "x":1, "y":0}, {"label":"K02", "x":2, "y":0}, {"label":"K03", "x":0, "y":1}, {"label":"K04", "x":1, "y":1}, {"label":"K05", "x":2, "y":1}]
    }
  }
}