@Override
    public void close() throws Exception {
        this.channel.close();
    }
Simple/dumb unix domain socket that listens for connections,
reads the input to a string, then executes it as a command.

<p>Combined with a small sh/nc program, this makes it easy to execute
commands against a standalone instance of LP in a Docker container.</p>
standalone/app/src/main/java/me/lucko/luckperms/standalone/app/utils/DockerCommandSocket.java