12-Year-Old Builds Rust CLI Tool to Tackle 'Works on My Machine' Problem

A 12-year-old self-taught programmer has developed zeroenv, an open-source command-line tool written in Rust, to address the common developer frustration of inconsistent coding environments. The tool automatically scans a project directory for manifest files such as package.json, requirements.txt, go.mod, and Cargo.toml, then generates a lightweight configuration file locking the environment state. The developer chose Rust for its speed, single-binary output, and memory safety features, and used the project to learn file parsing, error handling, and Git workflows. Currently supporting Node.js, Python, Go, and Rust projects, zeroenv aims to offer a simpler alternative to Docker containers or Nix configurations. The creator has published the source code on GitHub and is seeking feedback from experienced developers to improve the tool further.