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Overview
Build real systems judgment on isolated machines that are yours to break. Hands-on courses in Nix, NixOS, and the infrastructure layer — where the mistake is the lesson.
News
What does the hash in a Nix store path actually name?
Store Paths, the second Part of LabCraft's Nix course, is now available. It uses a real NixOS machine to answer what names a path and why that name moves.
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nix Didn't Hang. It Was Evaluating the World!
A beginner's first nix search looked like a tiny lookup and behaved like a memory benchmark. We pinned the installer, pinned nixpkgs, and baked the eval cache so the lesson could start with Nix, not the OOM killer.
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Learn Nix on a real Linux VM: LabCraft is open in public beta
LabCraft is free during the public beta. Start the Nix course in your browser, work on a real machine, and learn by fixing the failures Nix beginners commonly hit.
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Introducing LabCraft: learn Nix where it breaks
Learn Nix on a real VM that's yours to break, with chapters built around the failures everyone hits and checks that inspect what actually ran on the box.
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