What we have been up to

__structuredAttrs in Nix

By Robin Gloster on Mon, 20 Jan 2020

In Nix 2 a new parameter to the derivation primitive was added. It changes how information is passed to the derivation builder. Current State In order to show how it changes the handling of parameters to derivation, the first example will show the current state with __structuredAttrs set to false and the stdenv.mkDerivation wrapper around derivation. All parameters are passed to the builder as environment variables, canonicalised by Nix in imitation of shell script conventions:

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Windows-on-NixOS, part 1: Migrating bare-metal to a VM

By Linus Heckemann on Wed, 27 Nov 2019

This is part 1 of a series of blog posts explaining how we took an existing Windows installation on hardware and moved it into a VM running on top of NixOS. Background We have a decently-equipped desktop PC sitting in our office, which is designated for data experiments using TensorFlow and such. During off-hours, it's also used for games, and for that purpose it has Windows installed on it. We decided to try moving Windows into a VM within NixOS so that we could run both operating systems in parallel.

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The NixOS RFC Process

By Robin Gloster on Mon, 19 Aug 2019

History The NixOS RFC process was established in March 2017, initiated by zimbatm, teh and Moretea in order to standardise a process to find an agreement on larger changes to Nix/NixOS/Nixpkgs and the ecosystem in general. Over the following one and a half years a few uncontroversial RFCs were merged but for most of the RFCs that needed further discussion nobody felt responsible to make a decision. That is the reason RFC 36 was written in collaboration with most core Nix/Nixpkgs members at the last NixCon and merged in December 2018 in order to streamline the process and define clearer responsibilities.

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Our Crew

Franz Pletz

Franz Pletz

fpletz

NixOS Security & Release Manager

Franz has been herding GNU/Linux systems for over 15 years. You are probably running some of his code right now because he loves submitting patches just as much as ranting about broken code.

Robin Gloster

Robin Gloster

globin

NixOS Release Manager

Robin has been using Linux since he was a 13 year old child in school and has always been hacking around with it, being happiest with NixOS and loving its declarativity. No more eventual consistency, the usual case with other configuration management.

Linus Heckemann

Linus Heckemann

sphalerite

NixOS Release Manager

Discovering nix a year after living through a period of docker-related frustration made Linus very happy, and he has since become a very active member of the community, regular contributor, and release manager for NixOS 19.03 and 19.09.

Our Services

Consulting

Whatever the challenges are, that you are facing using Nix and the related tooling, we have the prevalent solutions you can depend upon.

Training

In individual workshops we will introduce you and your team to the wonders of reproducibility without the need for scary side effects.

Migration

After evaluating and analyzing your current infrastructure, we will provide you with the insights you need for a successful transition to the Nix ecosystem.

Maintenance

Whether you want continued assistance on your declarative journey or long term support for a NixOS release with security updates, we have got you covered.