qmk_firmware_custom/keyboards/rama/m10_b/info.json

{
  "keyboard_name": "m10-b",
  "url": "",
  "maintainer": "qmk",
  "width": 3,
  "height": 4,
  "layouts": {
    "LAYOUT": {
      "layout": [
        { "x": 0, "y": 0 },
        { "x": 1, "y": 0 },
        { "x": 2, "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": 1, "y": 3, "w": 2.0 }
      ]
    }
  }
}