{
  "formatVersion": "1.0",
  "id": "minimal-example",
  "name": "A day in Lille",
  "start": "2026-09-05",
  "end": "2026-09-05",
  "members": [
    {
      "id": "m1",
      "name": "Alex",
      "role": "owner",
      "kind": "adult"
    }
  ],
  "days": [
    {
      "id": "d1",
      "index": 1,
      "date": "2026-09-05",
      "title": "Old Lille",
      "items": [
        {
          "id": "i1",
          "time": "10:00",
          "title": "Stroll through Old Lille",
          "type": "heritage",
          "status": "planned",
          "place": "Place du Général-de-Gaulle, Lille"
        },
        {
          "id": "i2",
          "time": "12:30",
          "title": "Lunch",
          "type": "meal",
          "status": "planned"
        }
      ]
    }
  ]
}