Change volume in small increments using a Windows keyboard volume wheel on macOS

volume_wheel_adjustment_precision.json

{
    "title": "Volume Wheel Adjustment Precision",
    "rules": [
        {
            "description": "Change volume in small increments using a Windows keyboard volume wheel on macOS",
            "manipulators": [
                {
                    "type": "basic",
                    "from": {
                        "key_code": "volume_decrement"
                    },
                    "to": [
                        {
                            "key_code": "volume_decrement",
                            "modifiers": ["right_option", "right_shift"]
                        }
                    ]
                },
                {
                    "type": "basic",
                    "from": {
                        "key_code": "volume_increment"
                    },
                    "to": [
                        {
                            "key_code": "volume_increment",
                            "modifiers": ["right_option", "right_shift"]
                        }
                    ]
                }
            ]
        }
    ]
}