{
  "interval": 8,
  "maxCycles": 2,
  "cards": [
    { "url": "https://card.pm/l3dlp", "label": "l3dlp" },
    { "url": "https://card.pm/clh",   "label": "clh" },
    { "url": "https://card.pm/demo",  "label": "demo" }
  ]
}