[
    (
        when: Match("SUBSYSTEM", "tty"),
        do: [
            Set("MODE", "0o600"),
        ]
    ),
    (
        when: All([
            Match("SUBSYSTEM", "tty"),
            Match("DEVNAME", "tty"),
        ]),
        do: [
            Set("MODE", "0o666"),
        ]
    ),
]