{
  "type": "minecraft:jigsaw",
  "biomes": "#minecraft:has_structure/ruined_portal_standard",
  "step": "surface_structures",
  "spawn_overrides": {},
  "setups": [
    {
      "placement": "underground",
      "air_pocket_probability": 1,
      "mossiness": 0.2,
      "overgrown": false,
      "vines": false,
      "can_be_cold": true,
      "replace_with_blackstone": false,
      "weight": 0.5
    },
    {
      "placement": "on_land_surface",
      "air_pocket_probability": 0.5,
      "mossiness": 0.2,
      "overgrown": false,
      "vines": false,
      "can_be_cold": true,
      "replace_with_blackstone": false,
      "weight": 0.5
    }
  ],
  "start_pool": "vanilla_skyblock:empty_16",
  "max_distance_from_center": 1,
  "size": 1,
  "start_height": {
    "type": "minecraft:uniform",
    "min_inclusive": {
      "above_bottom": 0
    },
    "max_inclusive": {
      "below_top": 0
    }
  },
  "use_expansion_hack": false
}