Worked on the uutils/procps repository to deliver a feature that displays user idle time and elapsed session time within the command-line interface. The implementation involved refactoring the UserInfo structure to store idle time as a Rust Duration, enhancing type safety and maintainability. Utilities were introduced to fetch and format durations, presenting session metrics in a human-friendly format for improved user experience and visibility. This work, focused on Rust and system programming, lays the foundation for richer session analytics and future metrics capabilities, while emphasizing clear, maintainable code and robust handling of time-related data within command-line tools.