{
  "id": "gps_location",
  "description": "Meta layer showing the current location of the user",
  "minzoom": 0,
  "source": {
    "osmTags": "user:location=yes"
  },
  "mapRendering": [
    {
      "icon": "crosshair:#00f",
      "iconSize": "40,40,center",
      "location": "point"
    }
  ]
}