{
    "$schema": "https://json-schema.org/draft/2020-12/schema",
    "$defs": {
        "ua_string": { "type": "string", "minLength": 1 }
    },
    "properties": {
        "$schema": { "type": "string" },
        "version": { "type": "integer", "const": 1 },
        "platforms": {
            "type": "object",
            "properties": {
                "win": { "$ref": "#/$defs/ua_string" },
                "mac": { "$ref": "#/$defs/ua_string" },
                "linux": { "$ref": "#/$defs/ua_string" }
            },
            "required": ["win", "mac", "linux"],
            "additionalProperties": false
        }
    },
    "required": ["version", "platforms"],
    "additionalProperties": false
}