Tech Demos
See what makes Nix and NixOS genuinely exciting — short, sharp demos of capabilities that feel like magic the first time you watch them.
What you'll see
- Live-patching a package without forking a single repository
- NixOS integration tests running real, multi-machine scenarios
- A full NixOS deployment to a fresh cloud server in just a few minutes
Who this is for
Anyone curious about what the Nix ecosystem can do — whether you're evaluating it for your team or just want to be impressed. No setup, no commitment: press play and enjoy.
What's included
Three free, bite-sized demos. Watch them, share them, and when you're ready to go deeper, our full courses are waiting.
Lessons
Browse the videos included in this course.
Section 1 — Live demos
3 lessonsShort, sharp demos of capabilities that feel like magic the first time you watch them.
1.1 Patching Hello World
Watch a package get live-patched with zero forking. We change the classic "Hello World" program to greet us with "Hello Nixcademy" by editing its derivation right in the Nix REPL — a tiny demo with big implications.
1.2 NixOS Integration Tests
A quick look at NixOS integration tests in action — spinning up real machines to verify behaviour automatically. It's the kind of testing that makes changing production systems feel safe.
1.3 NixOS Anywhere Demo
We deploy a complete NixOS configuration onto a brand-new Hetzner cloud VM in just a few minutes using nixos-anywhere. From empty server to running system, declaratively.
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Taught by Nixcademy
The same material we teach in our professional, instructor-led Nix and NixOS classes — built from real training experience helping engineers and teams adopt Nix in production.
What learners say
“Jacek's invaluable support and expertise were instrumental in enabling my team to develop customized systems for sensor data collection. His adept use of Nix for ensuring maintainability and quick deployments has been nothing short of remarkable. My employees have consistently praised his exceptional teaching style.”
“The Nix(OS) workshop was a valuable experience that has opened up many new possibilities for us. It was particularly impressive how easy it is to create reproducible environments for training neural networks with Nix. Thanks to the knowledge we learned, we have already been able to successfully create some packages and contribute to nixpkgs.”
“I recently had the opportunity to participate in nixcademy's Nix & NixOS training, and it was truly transformative for our team. The trainer's knowledge and ability to simplify complex concepts made the learning experience seamless. The week-long training, although challenging, has had a strong enabling effect on our daily work results.”
