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Nixpkgs is a collection of over 120,000 software packages that can be installed with theNix package manager.It also implementsNixOS, a purely-functional Linux distribution.

• NixOS Manual - how to install, configure, and maintain a purely-functional Linux distribution
• Nixpkgs Manual - contributing to Nixpkgs and using programming-language-specific Nix expressions
• Nix Package Manager Manual - how to write Nix expressions (programs), and how to use Nix command line tools

• Discourse Forum
• Matrix Chat
• Official wiki
• Community-maintained list of ways to get in touch (Discord, Telegram, IRC, etc.)

The sources of all official Nix-related projects are in theNixOS organization on GitHub.Here are some of the main ones:

• Nix - the purely functional package manager
• NixOps - the tool to remotely deploy NixOS machines
• nixos-hardware - NixOS profiles to optimize settings for different hardware
• Nix RFCs - the formal process for making substantial changes to the community
• NixOS homepage - theNixOS.org website
• hydra - our continuous integration system
• NixOS Branding - NixOS branding

Nixpkgs and NixOS are built and tested by our continuous integration system,Hydra.

• Continuous package builds for unstable/master
• Continuous package builds for the NixOS 25.05 release
• Tests for unstable/master
• Tests for the NixOS 25.05 release

Artifacts successfully built with Hydra are published to cache athttps://cache.nixos.org/.When successful build and test criteria are met, the Nixpkgs expressions are distributed viaNix channels.

Nixpkgs is among the most active projects on GitHub.While thousands of open issues and pull requests might seem like a lot at first, it helps to consider it in the context of the scope of the project.Nixpkgs describes how to build tens of thousands of pieces of software and implements a Linux distribution.TheGitHub Insights page gives a sense of the project activity.

Community contributions are always welcome through GitHub Issues and Pull Requests.

For more information about contributing to the project, please visit thecontributing page.

The infrastructure for NixOS and related projects is maintained by a nonprofit organization, theNixOS Foundation.To ensure the continuity and expansion of the NixOS infrastructure, we are looking for donations to our organization.

You can donate to the NixOS foundation throughSEPA bank transfers or by using Open Collective:

Nixpkgs is licensed under theMIT License.