porcelain

Replaces Erlang's complex port interface with intuitive functions like `exec()` and `spawn()`, making it straightforward to launch and manage external processes.

Supports multiple input/output methods including files, Elixir streams, and direct messaging, as shown with options like `in: {:path, 'input.txt'}` and `out: :stream`.

Allows asynchronous process spawning with `spawn()` for continuous data exchange, enabling real-time interaction with external programs.

Optional external driver provides advanced features like OS signal sending, extending functionality beyond basic process management when installed.