I’m putting together a lightweight, Python-based system performance monitor that will run on Linux only. The core purpose is to track three metrics in real time—CPU usage, memory usage and disk I/O—and present that data in a clear, configurable way. Here’s what I need from you: • A clean Python script or small package (feel free to use psutil or similar standard libraries) that samples those metrics at an adjustable interval. • A simple output option—either streamed to the console, written to a log file, or both—so I can choose how to view the information on the fly. • Basic configuration handled by a plain text or YAML file; no GUI required. • Clear README explaining setup, dependencies, and example commands. If unit tests make sense for your structure, include them so I can verify everything quickly. Keep the code modular and well commented so I can extend it later if I decide to add network or application monitoring. Once the script is running smoothly on my Linux box and the documentation is in place, we’ll call the job done.