[logo ](https://nixos.org/nixos) [![Build Status](https://travis-ci.org/NixOS/nixpkgs.svg?branch=master)](https://travis-ci.org/NixOS/nixpkgs) [![Issue Stats](http://www.issuestats.com/github/nixos/nixpkgs/badge/pr)](http://www.issuestats.com/github/nixos/nixpkgs) [![Issue Stats](http://www.issuestats.com/github/nixos/nixpkgs/badge/issue)](http://www.issuestats.com/github/nixos/nixpkgs) Nixpkgs is a collection of packages for the [Nix](https://nixos.org/nix/) package manager. It is periodically build and tested by the [hydra](http://hydra.nixos.org/) build daemon as so-called channels. To get channel information via git, add [nixpkgs-channels](https://github.com/NixOS/nixpkgs-channels.git) as a remote `git remote add nixpkgs-channels https://github.com/NixOS/nixpkgs-channels.git`. It is recommended to maintain custom changes on top of the `nixos-unstable` branch of `nixpkgs-channels`. For pull-requests, please rebase onto nixpkgs master. [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) --- [![Throughput Graph](https://graphs.waffle.io/nixos/nixpkgs/throughput.svg)](https://waffle.io/nixos/nixpkgs/metrics)