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
“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 am delighted with the course and the content! The tutor is competent and presents the content in an understandable way and responds to spontaneous questions in detail. The many practical examples have opened up new ideas and horizons for me. The training week was full of aha-effects.”
“Nixcademy has been a game-changer for me. Working with my mentor has been incredibly rewarding. The personalized guidance and in-depth education have boosted my skills tremendously. I highly recommend Nixcademy for anyone serious about mastering Nix.”
