- Package search (for stable channel)
- An unofficial multi-channel package search (for all recent channels, including stable - currently not being updated)
- Options search (for stable channel)
- A list of channels, and when they were last updated
- A timeline of channel builds
- A source code search (that actually works!) of all NixOS repositories; Nix, nixpkgs, etc.
- A
.drvfile parser in JS - rnix, a Nix (language) parser in Rust
- Nix manual
- A complete list of Nix operators (the list in the official manual is incomplete)
- nixpkgs manual
- NixOS manual
- Archive of security advisories
- Unofficial NixOS wiki
- Step-by-step walkthrough of the Nix language
- A shorter primer of the Nix language (probably a better option if you already know another programming language)
- Nix pills (a series of articles about different aspects of Nix; ongoing work on a compact edition can be found here)
- Example configurations
- Hardware configurations (includes configurations for dealing with quirks on specific hardware and models)
- Nix in multi-user mode on a non-NixOS (eg. Debian) system
- The Nix forum
- IRC: #nixos on Freenode