NixOS Consulting & Open Source Infrastructure - Numtide
Building systems
Crafting solutions
We’re a team of independent principal engineers who love Open Source and building custom systems and infrastructure for teams that are focused on getting things done – no sales layer, no middle management.
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Software Development
We partner with your engineers to deliver custom infrastructure and systems—solving real problems fast and integrating seamlessly into your existing stack.
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Research & Development
We build custom tools and infrastructure tailored to your workflows, working closely with your team from idea to deployment.
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Nix & NixOS Support
We provide hands-on NixOS commercial support to help your team build, maintain, scale, and troubleshoot reliable systems faster.
Here is the
tech we use.
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Nix / NixOS
We are deeply embedded within the Nix ecosystem and use it daily to deliver systems faster and more reliably.
When we help you migrate to Nix we don't just pair with your team, but also teach them the patterns to stay productive and independent.
And if Nix isn't the right fit, we'll use whatever tools best match your situation.
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Sovereign Stack
We build infrastructure you fully own: no proprietary layers, no managed-service traps, no vendor lock-in.
By using Nix, we make environments reproducible and auditable: pinned dependencies, repeatable builds, and traceable deployments.
You get the source, documentation, and know-how to run it yourself and move it wherever you need.
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LLMs
LLMs are evolving fast. We help you apply them pragmatically where they create real value.
Our focus stays the same: high-quality maintainable code and engineering outcomes you can trust.
On spec-heavy work, we've used LLM-assisted workflows to reduce effort significantly, passing hundreds of hours of savings back to customers.
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Open Source
We maintain and contribute to open source tools that Nix stacks rely on.
Working with Numtide means you're not only getting senior engineering help, but also supporting the ecosystem your infrastructure depends on.
That feedback loop makes your platform stronger over time.
What teams say about us.
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Numtide are among the very best teams I've worked with. They are some of the foremost experts in their craft. They go out of their way to make sure you will succeed. Definitely recommended if you need software lifecycle consultants for any project. They will work hard to understand your needs, and help you get where you want and need to be.
Sam Rose
Postgres team manager @ Supabase
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Working with Numtide has been extremely valuable. The team combines deep domain knowledge with a pragmatic approach, and as a result, they always delivered great results on the problems we asked them to solve.
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Numtide helped teach us how to profile kernel locking issues, which none of us had any deep experience with. We’d be happy to use them again, no matter how low- or high-level the issue.
Meet the team.
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Dragan Milic
Team Lead
Switzerland- Distributed Networking
- Databases
- Ethereum
Dragan Milic
Dragan has a PhD in distributed overlay networks from the University of Bern and a track record of shipping under pressure -- from backend systems at Monzo Bank to leading the Arkiv Network team, where he took an Ethereum L3 data platform from zero to mainnet.
Give him a big technical problem and a team, and he will deliver.
Projects
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Jonas Chevalier
Founder
Switzerland- Herding of Geeks
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Jörg Thalheim
Germany- Builder of tools
- Chief of Automation
MORE
Our contributions to
Open Source.
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blueprint
Standard project structure for Nix.- Contributors
- 19
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buildbot-nix
A NixOS module to make Buildbot a proper Nix CI.- Contributors
- 29
- Commits
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- Closed Issues
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- Stars on Github
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disko
Declarative disk partitioning and formatting using Nix.- Contributors
- 142
- Commits
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- Closed Issues
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ethereum.nix
Reproducible Ethereum infrastructure with Nix.- Contributors
- 40
- Commits
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- Closed Issues
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flake-utils
The standard utility library for Nix flakes.- Contributors
- 28
- Commits
- N/A
- Closed Issues
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- Stars on Github
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llm-agents.nix
Nix packages for AI coding agents.- Contributors
- 80
- Commits
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- Closed Issues
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- Stars on Github
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nix-direnv
A fast, persistent use_nix/use_flake implementation for direnv.- Contributors
- 84
- Commits
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- Closed Issues
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- Stars on Github
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nixos-anywhere
Install NixOS everywhere via SSH.- Contributors
- 80
- Commits
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- Closed Issues
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nixos-facter
Declarative hardware configuration for NixOS.- Contributors
- 14
- Commits
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- Closed Issues
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nixos-images
Automatically build netboot images for NixOS.- Contributors
- 25
- Commits
- N/A
- Closed Issues
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- Stars on Github
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srvos
NixOS profiles for servers.- Contributors
- 44
- Commits
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- Closed Issues
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- Stars on Github
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system-manager
Manage system config with Nix on any distro.- Contributors
- 34
- Commits
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- Closed Issues
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- Stars on Github
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treefmt
The universal code formatter multiplexer.- Contributors
- 23
- Commits
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- Closed Issues
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- Stars on Github
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