Nix & NixOS Consulting
Nix is three things at once: a purely functional, lazily evaluated language for describing packages and configurations; a build tool that evaluates those descriptions into reproducible derivations and builds them in isolated sandboxes; and a package manager that installs, upgrades, and rolls back the results without ever disturbing what's already on your system. NixOS is a Linux distribution built on all three, configuring your entire system (packages, services, users) from that same declarative language. Together they make builds, deployments, and development environments genuinely reproducible: what works on one machine works on every machine, today and years from now.
As Nix and NixOS experts, we've been running them in production and on our own machines for years, and we help teams adopt them without the trial and error.
Reliability and predictability translate directly into lower operating costs. With Nix and NixOS, "it works on my machine" stops being an excuse: what a developer builds and tests is exactly what runs in production, which means fewer outages, faster incident recovery (a broken deployment rolls back in seconds), and less time spent debugging environment drift.
Teams that adopt Nix also onboard new engineers faster, since a working development setup is one command away, and can run the same infrastructure across cloud providers or on-premises without vendor lock-in.
We help you get these benefits without the steep learning curve, from a first pilot project to running your whole platform on it.
Why Nix & NixOS
Reproducible by design
Every build runs in an isolated sandbox with explicitly declared inputs, so if it works on one machine, it works on every machine, and still works next year.
Atomic upgrades & rollbacks
System and package changes are transactional. If something goes wrong, roll back to the previous generation in seconds, with no broken half-upgrades.
Declarative infrastructure
Describe an entire system (packages, services, users, secrets) as version-controlled code, and reproduce it identically anywhere.
Reliable dev environments
A single command hands every contributor the exact same toolchain, down to the last library version, so there's no more "works on my machine".
One tool, every language
Nixpkgs packages well over 100,000 pieces of software across ecosystems, so polyglot stacks share a single, consistent build tool.
No dependency conflicts
Multiple versions of the same library coexist safely, with automatic garbage collection cleaning up whatever's no longer referenced.
What We Offer
Nixpkgs packaging
Getting your software packaged for Nixpkgs, or set up as a private flake or overlay for internal tooling.
Reproducible builds & CI
Nix-powered build pipelines that produce identical artifacts on every run, on every machine.
Reproducible dev environments
Flake-based dev shells so onboarding a new contributor takes minutes, not days.
NixOS infrastructure
Declarative server fleets deployed and kept in sync via tools like nixos-rebuild, deploy-rs, or colmena, including secrets management.
Migration & training
Migrating existing infrastructure or CI to Nix, and hands-on training to get your team productive with it.
Ongoing maintenance
Keeping packages, NixOS modules, and flake inputs up to date and secure over time.
