Emily
bb7c7d604d
Currently, every platform uses LLVM 18 except for the following exceptions: * Darwin, on LLVM 16. * WASM, on LLVM 16. * Android, on LLVM 12. As discussed with RossComputerGuy and alyssais on Matrix, we plan to bump both Darwin and Linux to LLVM 19 after the 24.11 branch‐off, and try to keep them in sync after that, bumping to new stable LLVM releases immediately after releases branch off. This prepares for a 25.05 where `llvmPackages` is a simple platform‐independent alias by removing all the redundant branches and upgrading WASM and Android to LLVM 18. I checked with lilyinstarlight who did the previous LLVM bump for WASM and she confirmed that there should be no particular reason to keep it pinned to 16 so long as Firefox continues to compile, and I have confirmed that it does. Android was last bumped back when the other platforms were on LLVM 7, which is pretty good evidence that these platform‐specific conditionals create unnecessary divergence and bitrot quickly. Due to the “maximum‐of‐minimums” cross‐compilation logic, it was inevitably picking LLVM 16 or 18 anyway. `pkgsCross.aarch64-android.hello` fails the exact same way as it does on `master` on all the platforms I tested (compiler-rt failing to build on `aarch64-linux` and `x86_64-linux`, and the Linux headers package expecting `gcc(1)` on `aarch64-darwin`). I’m not entirely sure that the maximum‐of‐minimums logic is correct (should it be completely ignoring `buildPlatform` like this?), but since it will hopefully go away very soon I’ve decided not to spend more time thinking about it.
Nixpkgs is a collection of over 100,000 software packages that can be installed with the Nix package manager. It also implements NixOS, a purely-functional Linux distribution.
Manuals
- 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
Community
- Discourse Forum
- Matrix Chat
- NixOS Weekly
- Official wiki
- Community-maintained list of ways to get in touch (Discord, Telegram, IRC, etc.)
Other Project Repositories
The sources of all official Nix-related projects are in the NixOS 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 - the NixOS.org website
- hydra - our continuous integration system
- NixOS Artwork - NixOS artwork
Continuous Integration and Distribution
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 24.05 release
- Tests for unstable/master
- Tests for the NixOS 24.05 release
Artifacts successfully built with Hydra are published to cache at https://cache.nixos.org/. When successful build and test criteria are met, the Nixpkgs expressions are distributed via Nix channels.
Contributing
Nixpkgs is among the most active projects on GitHub. While thousands of open issues and pull requests might seem a lot at first, it helps 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. The GitHub 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 the contributing page.
Donations
The infrastructure for NixOS and related projects is maintained by a nonprofit organization, the NixOS 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 through SEPA bank transfers or by using Open Collective:
License
Nixpkgs is licensed under the MIT License.
Note: MIT license does not apply to the packages built by Nixpkgs, merely to the files in this repository (the Nix expressions, build scripts, NixOS modules, etc.). It also might not apply to patches included in Nixpkgs, which may be derivative works of the packages to which they apply. The aforementioned artifacts are all covered by the licenses of the respective packages.