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Welcome to the first edition of NixOS weekly. We will do our best to release this newsletter every second week. If there is something you think we could improve, please let us know. NixOS 17.03 release manager is Robin Gloster. Thank you and we are looking to help you get 17.03 out of the door. Typing nix − funding campaign: Help Théophane Hufschmitt get his internship funded. Jan 24, 2017, London NixOS User Group at CodeNode, London, UK Feb 25, 2017, Amsterdam Nix Meetup at Container Solutions…

Let us together review what happened in NixOS community in last 2 weeks. We are always looking to improve. Let us know how we can do better. Many of you are not aware, but you can easily subscribe and help triage tickets and pull requests in NixOS/nixpkgs repository. Branch-Off and Release Timeline for NixOS 17.03. Hydra Building PRs discussion with a follow-up discussion. The service is merging with hydra.nixos.org. Nixpkgs Overlays pull request proposed by Nicolas B. Pierron got merged (more…

Another two weeks have passed and it is time for our summary. A new section Questions was added to the newsletter. The intention for this new section is that it is going to expose some of the questions that happen in the past. We hope that none of the questions will be left unanswered. Sometimes we forget just how awesome Nix / NixOS is and we take its capabilities for granted. It is important that we remind ourself from time to time why are we using it, via reddit - In Love: Just thought I'd…

Nix, NixOS and nixpkgs are all moving ahead at good speed. The 17.03 milestone is more than 50% complete, and we merged 144 pull requests for nixpkgs just in the last seven days. The NixOS 17.03 beta has been announced. We now allow packages to be marked insecure, and you have to opt-in to install insecure packages similarly to how you opt in to non-free software. The option is called permittedInsecurePackages. See the updated docs for more. Robin finished the systemd 232 update which opens up…

The 17.03 "Gorilla" release has been tagged! There are too many good things in this release to pick favourites. I refer you to the release notes instead. Some fun stats: ~ 900 new packages since 16.09 ~ 80 new contributors (very inexact science this) ~ 60 new services Did I mention the release? Robin has been doing a fantastic job, thank him when you meet him! He's also had a lot of help of course, so thanks to all those people as well. It's a pretty long list and you can get it with…

Or in other words: no more Perl in Nix! Shea Levy's last branch for his long-ongoing work to remove Perl from the Nix tool has finally been merged NixOS on Packet.net Over the past several months, Graham Christensen (grahamc), Tuomas Tynkkynen (dezgeg), and many wonderful people from Packet.net have collaborated on bringing NixOS to Packet.net. Our collaboratioon started in January with Packet sponsoring many Hydra build servers. It continued by bringing ARMv8 builders to hydra.nixos.org. It is…

A few months ago a proposal to define improvements process (nixos/rfcs) was announced. While many contributions to Nix and NixOS related projects fits into GitHub pull requests model, doing a substantial change requires more involvement from the community. Two months later we can see that NixOS community is picking up on the process and RFCs are starting to show up each week. First RFC to go through the process. What a milestone! RFC 0004: Replace Unicode Quotes was voted to be implemented. And…

Welcome to another edition of NixOS Weekly. Major announcements include NixCon 2017 and the old wiki migration. This edition adds a new Tooling section for possibly useful Nix-related tools in addition to News, Jobs, Reading, and Events. NixCon 2017 October 28-31, Munich. Call for participation is open until July 31. The Wiki is dead. Long live the Wikis! This is the change that disable the wiki. The old wiki has been for a while now with ongoing work on updating and migrating the content…

The phoenix is a long-lived fiery bird that is present in many different mythologies from around the world. When a phoenix "dies", it does so by combustion and is reborn of the ashes left behind. It rises from its own ashes, in the freshness of youth, to live through another cycle of years. So in a sense, it never truly dies, but regenerates itself and lives forever. Just like this weekly newsletter. Welcome to the 2018 NixOS "Weekly" newsletter. We are back and hope to…

Welcome to another edition of NixOS "Weekly" News -- we're still working on that weekly bit and I've half a mind to amend the quote to add "monthly before weekly". Let me start by addressing everyone who helped put this edition together: By creating the content and helping collect items, you make the newsletter possible. Thank you. Contributions for future editions are more than welcome. One way to help is by editing a release; we've added an Editor's Guide to help you. There…

Welcome to another edition of NixOS "Weekly" Newsletter! Thank you to everyone who helped make this happen. Nix 2.0 has been released discussion on lobste.rs discussion on hacker news NixOS 18.03 release approaching Mog has set up an unofficial redbubble store for various NixOS items (T-shirts, stickers, banners). Nix has learned to load plugins Nix workgroups area Workgroups are used to facilitate working on components of the Nix ecosystems. As of this writing there exists: container…

NixOS weekly project is rebooting, expect a newsletter every Wednesday in the morning (European timezone). You're more than welcome to submit new items with a short description on latest pull request Domen Patreon to support the NixOS OfBorg infrastructure This supports Graham's infrastructure costs for the OfBorg tooling. Introducing the Nix Core Team NixCon2018 call for proposals cache.nixos.org now more local Announcing Cachix - Binary Cache as a Service Painlessly developing Python on NixOS…

NixOS 18.09 JellyFish to be forked off in a month Whole Nix community would like to specifically call out a massive thank-you to vcunat and samueldr for being 18.09's release managers, an important and central role in each release. Thank you Vladimír and Samuel! Snack incremental builds for Haskell is requesting feedback Beginner's guide to cross compilation in Nixpkgs nix-du: Visualise which gc-roots to delete to free some space in your nix store nix-top: Tool which allows high-level monitoring…

An EPYC NixOS build farm Graham explores and benchmarks an AMD EPYC build server against a differently incredible build server, finding the EPYC's builds are much faster across the board. Understanding Nix's String Context Shea Levy explains what is String Context, how it's implemented in Nix and shares implications on the use of the language. PostgreSQL packaging is getting an overhaul Easier use of plugins, version 10 as default, improved documentation, LLVM JIT support and more. RFC…

NixOS in production Gabriel Gonzalez shows how to do a remote [nixos-rebuild switch]{.title-ref} while pinning nixpkgs The [nix-devel]{.title-ref} mailing list is now replaced by our discourse.nixos.org forum instance which is also usable by email This work would not be possible without the many contributions of the community. You can help too! Create or comment on the pull request for the next edition or look at the issue tracker to add other improvements.

Nix overlay to program and use a tomu U2F token #33686: New installer bootloader Updates the bootloader, shedding one of the few remaining old logos, while also adding new features. Mainly, HiDPI options under a new sub-menu, allowing modesetting the console to a readable size! RFC 32: Tweak the process of executing phases in the stdenv for better nix-shell UX A proposal for making it easier to manually run phases of a build inside a nix-shell. Real-time audio in NixOS Bootstrap a zfs-on-root…

The NixCon 2018 sold out and program is now live Help make the Nix ecosystem's docs better A lot of people meet DocBook for the first time when they're contributing to the documentation of older, well established open source projects like NixOS. Now there is https://docbook.rocks/ to help you get past the initial hurdle of "what do I do now?" I hope this helps! Nix 2.1 has been added to the docker images Creating Nix build function abstractions for pluggable SDKs Packaging a Haskell…

Exploring Nix & Haskell Part 1: Project Setup This is the first of a series of posts, with the overarching goal of building up a deterministic Haskell development environment using Nix, including a modern IDE experience and any tooling built-in. New Aarch64 (and armv7l-linux omg!) builders New shirt and logo for 18.09 release krops as an alternative to NixOps NixOps, the official DevOps tool of NixOS, is nice but it has some flaws. krops is an alternative to NixOps trying to solve some of…

cache.nixos.org moved from Amazon to Fastly. A very hacky proof of concept of a lisp in Nix NixOS 18.09 Jellyfish released Request for maintenance: Azure blobs Your First Hydra This work would not be possible without the many contributions of the community. You can help too! Create or comment on the pull request for the next edition or look at the issue tracker to add other improvements.

NixCon 2018 videos of talks Eris: A simple binary cache server News on the security team Language Server Protocol for Nix using HNix NixOS mailserver 2.2.0 The NixOps resources.machines option Auto patching prebuilt binary software Engineer at Mercury Mercury is hiring a generalist engineer in SF. Mercury uses Nix for development, Hydra for CI, and runs on NixOS on AWS. Deployment Working Group nixdoc to generate documentation for Nix library functions NixOS/nixpkgs#49275 for the first generated…

NixOS 19.03 will leverage multiple cores automatically by default for builds and Nix 2.2 will have the sandbox enabled by default on Linux Deploy a C++ web app on Heroku using Docker and Nix Meson 0.48 landed in staging again Declarative client mail configuration In the past few months, some work went into home-manager to abstract mail configuration and generate configs for a variety of client-side software. Declare your username/password once and generate configs for…

Gnome 3.30 with wayland support has hit master To launch a wayland session simply use GDM or SDDM and select the gnome session. Select gnome-xorg to run an X11 session. If you encounter a bug please cc @hedning on github. Fast Docker Compose 'deployments' for development with Arion A little tool we use at Hercules CI for process supervision of local developer environments. No need to export, load or garbage collect Docker images! RFC0036 (Improving the RFC process) entered its Final Comments…

nix-instantiate introduction A polite introduction to use nix-instantiate and the NixOS module system to render JSON. TerraNix Terraform is awesome, it would be much more awesome with a NixOS module system. Debian is packaging Nix elm2nix 0.1 nix-env replacement for imperative package management, but with declarative core nix-mode.el's alternate indentation function nix-indent-line has received some very needed indentation improvements in NixOS/nix-mode#61, and automated tests and Travis-CI…

Nix is now available in Debian NixOS 19.03 feature freeze nixos-generators The nixos-generators project allows to take the same NixOS configuration, and generate outputs for different target formats i.e. ISO, kexec tarballs, qemu's qcow2 format, google cloud images... Code archeology: 15 years ago Nix files had .fix extension. Compare original MPlayer expression, it's first rewrite and modern view hydra-in-a-bag by @samueldr aims to provide a one-click command solution to running a hydra…

NixOS is bootable via netboot.xyz Try out NixOS, without having to even create a USB key. Easy dependency management for Nix projects Easily pin, update, and maintain remote dependencies for each of your Nix projects. The Pantheon desktop environment has been added to NixOS (on master) It can be enabled with services.xserver.desktopManager.pantheon.enable. The case of the supersized shebang Regression in the linux kernel all together with backporting the issue into all stable kernels. Diving…

Moving from Homebrew to Nix Package Manager Salar wrote a step-by-step tutorial how to migrate from homebrew to Nix. nixos/printers: declarative configuration Tired of manually configuring your CUPS printers every time you set up a new NixOS host? Please take a look and give it a try to see whether everything works with your setup! Static Nix: a command-line swiss army knife Matthew shows how using statically linked Nix in a 5MB binary, one can use Nix without root. With an one-liner shell, you…

Announcing Cachix private binary caches and 0.2.0 release You can now share an unlimited number of binary caches in your group of developers, protected from public use with just a few clicks. Nix in Termux Alexander Sosedkin makes Nix on Android working on AARCH64. Inclusion upstream can be followed in the termux repo Artwork for the upcoming NixOS 19.03 Koi release Updated merchant report for the release Why you should never ever use NixOS Rant from someone who got his hands to maintain NixOS…

NIXML: nix + YAML for easy reproducible environments Announcing the new Golang infrastructure: buildGoModule Why I use NixOS Announcing tree-sitter-nix A simple formatter for Nix using tree-sitter-nix Announcing Mixnix - Build Elixir projects with Nix Target and Tweag announce lorri, a nix-shell replacement for project development lorri is based around fast direnv integration for robust CLI and editor integration. Try it out PatchELF 0.10 released This work would not be possible without the many…

The IPFS team made package managers their top priority for 2019 There might be progress on its Nix integration. Statically linked Haskell executables and optionally Docker images or Debian packages Alexandre shows us how to use Niklas' package set to compile Haskell packages statically using musl. Concourse CI on NixOS Michael walks us through the process of setting up Concourse CI on a NixOS machine. NixOS 19.03 Koi released Linus announces latest NixOS release, a total of over 20,000 commits…

Setting up a C++ project environment with Nix Jacek explans step by step how to package a simple C++ project and how to build against a matrix of different dependencies. Anduril Industries is Hiring Nix Engineers Please see this post or email travis@anduril.com for more information. Software Heritage and GNU Guix join forces to enable long term reproducibility NixCon Brno 2019 is looking for sponsorship NixCon is happening again, if your company is using Nix in production, consider sponsoring…

autobake: Create build recipes through automated trial and error GNU Guix 1.0.0 released RFC on setup.nix Python development tool Asko proposes a new Python development tool SNM release compatible with NixOS 19.03 nixpkgs macOS stdenv updates Matthew's overview of recent stdenv updates, which also bumps minimal supported version to 10.12. Phoronix: NixOS Takes Action After 1.2GB/s ZFS Encryption Speed Drops To 200MB/s With Linux 5.0+ nixfmt Serokell releases nixfmt 0.1 with a focus on speed and…

A set of patches to build Redox on NixOS An attempt to embrace Nix instead of constantly working around the limitations to build Redox OS. The ultra optimistic long-term goal is to be a competing alternative to the GNU make build system the project currently uses, to make Redox builds reproducible and reliable. An experiment: ad-hoc container images made by @tazjin Using NixOS as an stateless workstation EuAndreh goes through the journey of installing NixOS on their laptop. nix-mode.el 1.4.1…

nix is now easier to bootstrap on Linux distributions without previous nix installation. Non-NixOS users are encouraged to try and report whether the improved autoconf checks make it easier to build it from source. static-haskell-nix started a crowd-funding on OpenCollective during ZuriHac to get its own dedicated Hetzner build server. Amazingly, the funding goal was reached within only 4 days! A big rework of the gstreamer package landed in nixpkgs with the upgrade to 1.16. It also demonstrates…

One-page Nix expression language overview Vincent wrote a one-page introduction to Nix language, covering language features you'll most likely encounter from day one. Encrypted ZFS mirror with mirrored boot on NixOS Using the boot.loader.grub.mirroredBoots module to have redundant boots with an encrypted ZFS mirror. Serokell is hiring Nix DevOps Engineers Serokell is looking for remote full-time Nix SREs. Yants - Yet Another Nix Type System Yants is a small runtime type-checker for Nix that can…

NixOS 19.09 released ociTools in NixOS Katharina explains her recently merged Open Container Initiative support in NixOS. Industrial-strength Deployments in Three Commands Vaibhav demonstrates how NixOps works by implementing a small deploy script from scratch. nix-emacs-ci Emacs installations for continuous integration Setting up a Custom Nix Channel How to put your /nix directory on a separate device Strange Loop 2019: "Functional DevOps in a Dysfunctional World" by Vaibhav Sagar…

Launching Hercules CI Announcing general availability of continuous integration specialized for Nix projects. Hercules CI Agent 0.6.1 Performance improvements, a bugfix to IFD and better onboarding experience. Improved performance in Nixpkgs Improving Nixpkgs setup by avoiding subshells in processing dependencies. Recently rewritten Nix-on-Droid got accepted into F-Droid repository Trying out Nix on your aarch64 or i686 Android device is now easier than ever. Two big stdenv cleanups: Enable…

Nix Notes The Nix Notes is a collection of short notes about Nix, each contributing to the same virtual machine image. The notes show how to deploy the image to Digital Ocean, update the running virtual machine without recreating it, and more. Deploying a fully automated Nix-based static website NYLUG Presents: "Sneaking in Nix - Building Production Containers with Nix" by Graham Christensen Lead DevOps Engineer with NixOs, Rust and Cloudflare A Nix-based functional organization for…

nix-simple-deploy A Rust rewrite of unmaintained nix-deploy. Any feedback appreciated! cached-nix-shell: Instant startup time for nix-shell Caching layer for nix-shell featuring instant startup time on subsequent runs. It supports NixOS and Linux. structured-attrs An explanation of __structuredAttrs in stdenv and why enabling it would be desirable. nix-bisect: Bisect Nix Builds A small command-line tool and python library that makes bisecting nix builds much more convenient. It prevents common…

Introducing nixbuild.net nixbuild.net is nix build as a service, allowing you to easily run distributed builds without having to setup, scale and maintain build servers. Proposal for improving Nix error messages Crowdfunding campaign to fund a complete rework of error messages in Nix to improve beginner's experience and make working with the tooling pleasant. Contextflow is hiring! contextflow is an award winning Vienna-based startup using AI on 3D medical images to improve radiology workflows…

NixOS 20.03 was released NixOS 20.03 “Markhor” had 1014 people contribute 21597 contributions. Announcing Nixiosk Declarative Kiosk systems built with NixOS. Announcing Marketing Team The marketing team was founded and had their few meetings. They already improved the website (see Learn page). If you want to join, you will find the details in the announcement post. Let's improve the presentation of Nix/NixOS! nix-update A tool for updating nix packages semi-automatically The journey of packaging…

Nix 2.3.5 release Long awaited support for macOS Catalina, see the manual A bunch of options to invoke installer (pass --help to see what's there) Various bugfixes to the installer MacOS sandboxing improvements Nix for GitHub Actions v9 v9 saves you a bunch of time when bootstrapping Nix (you can even disable adding of channels) Linux: ~20s -> ~7s MacOS: ~90s -> ~20s Nix Flakes, Part 1: An introduction and tutorial This is the first in a series of blog posts intended to provide a gentle…

Nix error messages proposal: phase 2, PR 1 merged! Nearly every C++ file in the repo was touched! This will be the biggest PR, by far, for this project. Getting this in is a major feat! Next up, I'm looking forward to finishing out this phase with showing the lines of code for errors, and supporting show-trace in the new format. I expect that PR to be much easier, both to make the changes and to review them. Long-term reproducibility with Nix and Software Heritage RFC 70: Merge nixos-hardware…

NixOS | Installation and First Impressions Why IHP is Using The Nix Package Manager Cachix Blog: Documentation and More Documentation Cachix Blog: Upstream caches: avoiding pushing paths in cache.nixos.org Redox added to Nixpkgs Nixpkgs now supports cross-compiling to the Redox operating system. The redoxpkgs overlay has been created to fix packages for Redox An introduction to nix-shell What is nix-shell and how to use it. Windows Functional Virtual Machine WFVM automatically bootstraps a…

NixCon 2020 Call-for-Participation is open! Conference dates: Oct. 16th – 18th, 2020. Live streaming on 2020.nixcon.org 20.09 Zero Hydra Failures has begun! Help stabilize NixOS for the upcoming 20.09 Release Cachix: Changes to Garbage Collection Based on your feedback there are two minor changes to how garbage collection behaves in Cachix. nixbuild.net is Generally Available Nix × IPFS – Milestone 1 fromElisp An Emacs Lisp reader in Nix. dconf2nix Nixify your DConf files (Gnome3 configuration)…

Announcing Nixpkgs Database A database and search engine for the entire history of each package at Nixpkgs. Cachix: write access control for binary caches The trust of who created binary cache contents comes from who owns the private signing key. This approach has a number of disadvantages when it comes to lifecycle in teams, so API tokens are now the default way to manage write access. NixOS 21.03 Call for Release Manager nixpkgs: Python 2.7 packages are no longer built nixpkgs: Haskell…

RFC 0080 Change NixOS releases to YY.05,YY.11 accepted The next NixOS stable release will be 21.05. agenix - manage NixOS secrets - public beta Agenix is a command-line tool for managing secrets encrypted with your existing SSH keys. It includes a NixOS module, age, for adding encrypted secrets into the Nix store and decrypting them. Cachix: Postmortem of outage on 20th December Deploying with GitHub Actions and more Nix Scrive Nix Workshop specialized for Haskell developers Installing NixOS on…

Introducing flox - Nix for simplicity and scale flox makes it easy to build software or manage development environments with Nix at any scale. Trustix Distributed trust and reproducibility tracking for binary caches. Recurring funding for making macOS a first-class citizen in Nix ecosystem A call for companies/developers to contribute financially towards addressing major macOS issues in the ecosystem. Offloading NixOS builds to a faster machine Build your NixOS Raspberry Pi Image using Github…

RFC 0085 FCP NixOS Release Stabilization: ZHF on master, new timeline RFC 0085 has been accepted! Nix Portable Nix - Static, Permissionless, Install-free, Pre-configured The Summer of Nix A two month train and work program from August 2nd to October 15th 2021 - great for anyone who wants to rapidly increase their Nix skills while doing useful work. Nix 🖤 macOS Monthly Update Nix is the ultimate DevOps toolkit nix-script: nix-shell shebangs for speed and flexibility Building container images…

NixOS 21.05 released! Jonathan Ringer, release manager, announces NixOS 21.05 release with 1745 contributors in 33474 commits. How we went from supporting 50 languages to all of them Replit replaces Docker with Nix and drastically improves support for languages. Peter Simons has retired from Haskell maintenance in Nixpkgs Please thank him for all his hard work! The Changelog #437 Domen Kožar introduces the Nix ecosystem. Compositional podcast Nix in Production with Domen Kožar NixNG, a late…

Makes A DevSecOps framework powered by Nix and the NixOS module system. Our goal is to help people setup a powerful CI/CD system in just a few steps, in any provider, while lowering the barrier to entry for the community. Mobile NixOS: July 2021 round-up Nix 🖤 macOS: June/July 2021 update The Ongoing effort at bumping LLVM and macOS SDK. terraform-provider-hydra A Terraform provider for declaratively managing Hydra projects and jobsets, Determinate Systems' first open source release. Modded…

deadnix Finds and removes unused code in .nix files. Nix 💙 Deployments fund call for contributors A fund on OpenCollective for the maintenance and development of Nix-based deployment technologies, starting with funding the NixOps 2 release. NixOS is available on GandiCloud VPS A NixOS server can be started in a single command or by few clicks on GandiCloud VPS. This work would not be possible without the many contributions of the community. You can help too! Create or comment on the pull…