konarocorp/eva — reverse-engineered prompt

Build me a small Python toolbox called Eva for Linux system scripting. I want it to be just one file that I can drop into a project and use with import eva, with zero external dependencies. Please target Python 3.13 or newer and keep the code clean, practical, and easy to read.

The goal is to make everyday Linux scripting feel nicer with a simple, consistent toolbox, not a big framework. Keep it dependency free, lightweight, and friendly for quick automation scripts. I also want the project to feel complete, so include a clear README and documentation with examples that show how someone would actually use it in real scripts. If there is already public documentation for this project, look it up and make sure the implementation and docs line up with it.