{
    "oneOf": [
        {
            "type": "null"
        },
        {
            "type": "object",
            "additionalProperties": false,
            "properties": {
                "env": {
                    "type": ["null", "object"],
                    "additionalProperties": false,
                    "patternProperties": {
                        "^[A-z_][A-z_0-9]+$": {
                            "anyOf": [
                                {
                                    "type": [
                                        "boolean",
                                        "integer",
                                        "number",
                                        "string"
                                    ]
                                },
                                {
                                    "type": "object",
                                    "additionalProperties": false,
                                    "properties": {
                                        "run": {
                                            "type": "string"
                                        }
                                    },
                                    "oneOf": [
                                        {
                                            "required": ["run"]
                                        }
                                    ]
                                }
                            ]
                        }
                    }
                }
            }
        }
    ]
}