{
  "api_base": "https://signage.example.com",
  "api_token": "st_REPLACE_WITH_A_FULL_SCOPE_TOKEN",
  "overlay_base_url": "https://signage.example.com/ticker-overlay.html",
  "device_id": "DEVICE_OR_GROUP_ID",

  "vs_currency": "usd",
  "coins": [
    { "id": "bitcoin",  "symbol": "BTC" },
    { "id": "ethereum", "symbol": "ETH" },
    { "id": "solana",   "symbol": "SOL" },
    { "id": "cardano",  "symbol": "ADA" }
  ],

  "poll_interval_sec": 120,
  "position": "bottom-right",
  "width": 1100,
  "height": 110,
  "border_radius": 14,
  "opacity": 1
}
