qmk_firmware/keyboards/merge/uc1/info.json

{
  "keyboard_name": "UC-1",
  "manufacturer": "Merge",
  "url": "https://mergedesign.store/products/uc-1",
  "maintainer": "duoshock",
  "usb": {
    "vid": "0x4D65",
    "pid": "0x5543",
    "device_version": "0.0.1"
  },
  "encoder": {
    "rotary": [
      {"pin_a": "F5", "pin_b": "F6"}
    ]
  },
  "processor": "atmega32u4",
  "bootloader": "caterina",
  "layouts": {
    "LAYOUT": {
      "layout":   [
        {"label":"0", "x":0, "y":0},
        {"label":"1", "x":1.25, "y":0},
        {"label":"2", "x":2.25, "y":0},
        {"label":"3", "x":3.25, "y":0}
      ]
    }
  }
}