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NixOS/nix

Nix, the purely functional package manager
Source code at GitHub https://nixos.org/
NixOS/nix.json
{
  "createdAt": "2012-02-08T10:17:59Z",
  "defaultBranch": "master",
  "description": "Nix, the purely functional package manager",
  "fullName": "NixOS/nix",
  "homepage": "https://nixos.org/",
  "language": "C++",
  "name": "nix",
  "pushedAt": "2025-11-26T01:46:06Z",
  "stargazersCount": 15499,
  "topics": [
    "c-plus-plus",
    "declarative-language",
    "functional-programming",
    "nix",
    "package-manager"
  ],
  "updatedAt": "2025-11-25T23:30:32Z",
  "url": "https://github.com/NixOS/nix"
}

Nix

Section titled “Nix”

Open Collective supporters CI

Nix is a powerful package manager for Linux and other Unix systems that makes package management reliable and reproducible. Please refer to the Nix manual for more details.

Installation and first steps

Section titled “Installation and first steps”

Visit nix.dev for installation instructions and beginner tutorials.

Full reference documentation can be found in the Nix manual.

Building and developing

Section titled “Building and developing”

Follow instructions in the Nix reference manual to set up a development environment and build Nix from source.

Contributing

Section titled “Contributing”

Check the [contributing guide]!(./CONTRIBUTING.md) if you want to get involved with developing Nix.

Additional resources

Section titled “Additional resources”

Nix was created by Eelco Dolstra and developed as the subject of his PhD thesis The Purely Functional Software Deployment Model, published 2006. Today, a world-wide developer community contributes to Nix and the ecosystem that has grown around it.

License

Section titled “License”

Nix is released under the [LGPL v2.1]!(./COPYING).