Often, you need IPC merely to communicate with a child worker process. I've seen quite a number of projects that needlessly roll their own solution when one can

Often, you need IPC merely to communicate with a child worker process. I've seen quite a number of projects that needlessly roll their own solution when one can just use the built-in process.send() method. Of course, this doesn't cover all the use cases of this particular library, I just think it's worth pointing out.