Two for Nomination:
Package: GitHub - Zollerboy1/SwiftCommand: A wrapper around Foundation.Process, inspired by Rust's std::process::Command.
Reason for nomination: While stumbling over my own two feet with a stupid bug, I started searching for libraries that supported subprocess shell execution and capturing the output. This was highlighted/announced on the forums by the Author a while ago, and I was impressed with how light it was in terms of dependencies, and thoughtful in its public API.