Nixpkgs is a collection of packages for [Nix](https://nixos.org/nix/) package manager. [](https://travis-ci.org/NixOS/nixpkgs) [](http://www.issuestats.com/github/nixos/nixpkgs) [](http://www.issuestats.com/github/nixos/nixpkgs) [NixOS](https://nixos.org/nixos/) linux distribution source code is located inside `nixos/` folder. * [NixOS installation instructions](https://nixos.org/nixos/manual/#ch-installation) * [Documentation (Nix Expression Language chapter)](https://nixos.org/nix/manual/#ch-expression-language) * [Manual (How to write packages for Nix)](https://nixos.org/nixpkgs/manual/) * [Manual (NixOS)](https://nixos.org/nixos/manual/) * [Continuous package builds for unstable/master](https://hydra.nixos.org/jobset/nixos/trunk-combined) * [Continuous package builds for 14.12 release](https://hydra.nixos.org/jobset/nixos/release-14.12) * [Tests for unstable/master](https://hydra.nixos.org/job/nixos/trunk-combined/tested#tabs-constituents) * [Tests for 14.12 release](https://hydra.nixos.org/job/nixos/release-14.12/tested#tabs-constituents) Communication: * [Mailing list](http://lists.science.uu.nl/mailman/listinfo/nix-dev) * [IRC - #nixos on freenode.net](irc://irc.freenode.net/#nixos)