A review of Vib-OS, a GitHub project claiming to be a Unix-like OS with GUI, networking, and Doom support — all written from scratch using vibe coding (AI-assisted development). In practice, the OS barely functions: networking and Doom are absent, basic file operations don't work, and many advertised features are missing entirely. The experiment highlights the gap between AI-generated code promises and actual working software, fueling ongoing debate about vibe coding's impact on open source quality.
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