The NixOS and NixCon GitHub organisations, as well as all their repositories are part of the official resources.
The org owners documentation is here.
There are many repositories, but these are some of the most important ones.
The Nix package collection and NixOS.
Over 200 people have commit access, which is managed by the Nixpkgs core team.
Furthermore, every Nixpkgs maintainer is part of the organisation, such that they can be requested as a reviewer.
Being a Nixpkgs maintainer doesn't grant any permissions by itself. They can however make use of the Nixpkgs merge bot in certain cases.
The Nixpkgs core team controls this repository.
The Nix language and CLI implementation.
The Nix Team controls this repository.
The source for the https://nixos.org/ landing page.
This is primarily maintained by the marketing team.
The source for https://nix.dev.
The documentation team controls this repository.
The repositories under the the NixCon organisation contain the sources of NixCon websites from different years, as well as tools and resources used by NixCon organisers.
The Nix community RFCs, see also here.
The RFC Steering Committee controls this repository.
Infrastructure configuration.
The infrastructure team controls this repository.
The home of the NixOS foundation.
The NixOS foundation board controls this repository.
The home of the branding guide and media kit.
The marketing team controls this repository.
The home of survey questions, historical data, and processing code.
The marketing team controls this repository.
Documented in ./nixpkgs-committers.md.
A very large group of contributors established by RFC 39.
Since this is a very large group, team notifications are turned off.