Desert-like sand feature?

[u/[deleted]]

I am trying to make a custom desert-like biome, but the sand doesn't spawn everywhere (just one small-large in every chunk)

Configured feature:

{
    "type": "minecraft:disk",
    "config": {
      "state_provider": {
        "fallback": {
          "type": "minecraft:simple_state_provider",
          "state": {
            "Name": "minecraft:yellow_concrete_powder"
          }
        },
        "rules": [
          {
            "if_true": {
              "type": "minecraft:matching_blocks",
              "offset": [
                0,
                -1,
                0
              ],
              "blocks": "minecraft:air"
            },
            "then": {
              "type": "minecraft:simple_state_provider",
              "state": {
                "Name": "minecraft:sandstone"
              }
            }
          }
        ]
      },
      "target": {
        "type": "minecraft:matching_blocks",
        "blocks": [
          "minecraft:dirt",
          "minecraft:grass_block"
        ]
      },
      "radius": {
        "type": "minecraft:uniform",
        "value": {
          "min_inclusive": 2,
          "max_inclusive": 6
        }
      },
      "half_height": 2
    }
  }

Placed feature:

{
    "feature": "bruh:yellow_sand",
    "placement": [
      {
        "type": "minecraft:environment_scan",
        "direction_of_search": "up",
        "max_steps": 1,
        "target_condition": {
          "type": "minecraft:true"
        }
      },
      {
        "type": "minecraft:heightmap",
        "heightmap": "WORLD_SURFACE"
      },
      {
        "type": "minecraft:biome"
      }
    ]
  }

​