catwalk3d 2.4.2

Headless model thumbnails rendered entirely in Rust
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{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://github.com/cmeister2/catwalk3d/blob/main/docs/format-catalog.schema.json",
  "title": "Catwalk format catalog, schema version 1",
  "type": "object",
  "required": ["schema_version", "catwalk_version", "extensions", "formats", "categories"],
  "properties": {
    "schema_version": {
      "const": 1
    },
    "catwalk_version": {
      "type": "string",
      "minLength": 1,
      "description": "Version of the executable that produced this catalog."
    },
    "extensions": {
      "$ref": "#/$defs/extensions",
      "description": "Sorted union of every enabled reader registry, including all aliases."
    },
    "formats": {
      "type": "array",
      "items": {
        "type": "object",
        "required": ["extension", "description"],
        "properties": {
          "extension": {
            "$ref": "#/$defs/extension"
          },
          "description": {
            "type": "string",
            "pattern": "\\S",
            "description": "Human-readable English display label for the format."
          }
        },
        "additionalProperties": true
      },
      "description": "Exactly one entry per extension, in the same order as extensions."
    },
    "categories": {
      "type": "object",
      "required": ["geometry", "image", "saved_preview", "native_geometry"],
      "properties": {
        "geometry": {
          "$ref": "#/$defs/extensions",
          "description": "Model and native-document geometry readers combined."
        },
        "image": {
          "$ref": "#/$defs/extensions",
          "description": "Raster and DICOM image readers."
        },
        "saved_preview": {
          "$ref": "#/$defs/extensions",
          "description": "Readers that can extract embedded document images."
        },
        "native_geometry": {
          "$ref": "#/$defs/extensions",
          "description": "Native-document geometry readers; a subset of geometry."
        }
      },
      "additionalProperties": true
    }
  },
  "additionalProperties": true,
  "$defs": {
    "extension": {
      "type": "string",
      "pattern": "^[a-z0-9]+$",
      "description": "Lowercase extension without a leading dot."
    },
    "extensions": {
      "type": "array",
      "items": {
        "$ref": "#/$defs/extension"
      },
      "uniqueItems": true
    }
  }
}