Strategy 2: Communicating via I/O with Ports

Ports provide a safer alternative to integrate with external software. Each port starts the third-party software as a separate process in the operating system. If that port terminates, the Elixir code gets a message, and we can act accordingly. A segmentation fault in the external port won’t bring the Elixir system down.

It is possible that we’ve already spawned ports in our Elixir applications, like this: