APL 1.3 refresh image every 30 seconds

refresh-image.json

{
  "type": "APL",
  "version": "1.3",
  "settings": {
      "idleTimeout": 300000
  },
  "theme": "dark",
  "import": [],
  "resources": [],
  "styles": {},
  "onMount": [],
  "graphics": {},
  "commands": {},
  "layouts": {},
  "mainTemplate": {
    "parameters": [
      "payload"
    ],
    "items": [
      {
        "type": "Container",
        "alignItems": "center",
        "justifyContent": "center",
        "items": [
          {
            "type": "Image",
            "width": 640,
            "height": 480,
            "source": "https://placem.at/places?w=640&h=480&random=${Time.format('YYYYMMDDHHMM', localTime)}${(Math.floor(Time.seconds(localTime) / 30) * 30) % 60}"
          }
        ]
      }
    ]
  }
}