- https://search.nixos.org: search packages, options, flakes
- https://mynixos.com/search: same as above, but also browse
- https://nix-builtins-search.extranix.com: search and browse nix builtins
- https://home-manager-options.extranix.com: search and browse hm options
- https://noogle.dev: search nix functions
- https://nixos.wiki/index.php: nixos wiki, documentation
- https://nix.dev: nix.dev documentation
- https://nix.dev/reference/nix-manual nix manual
- https://nix.dev/manual/nix/2.22/command-ref/new-cli/nix: nix command line reference
- https://nixos.org/manual/nixos/unstable/index.html: nixos (unstable) manual
- https://nixos.org/manual/nixos/unstable/index.html#ch-configuration: sys-level configuration documentation
- https://nixos.org/manual/nixpkgs/unstable/: nixpkgs reference manual
- https://github.com/NixOS/nixpkgs: nixpkgs repository
- https://nixos-and-flakes.thiscute.world/introduction/: nixos and flakes
- https://nixos.org/guides/nix-pills/: nix pills
- https://zero-to-nix.com: zero to nix
- https://ipetkov.dev/blog/tips-and-tricks-for-nix-flakes/: tips and tricks for nix flakes
- https://ayats.org/blog/nix-tuto-1: the nix lectures
- https://ayats.org/blog/nix-workflow: the nix development workflow
- https://vtimofeenko.com/posts/practical-nix-flake-anatomy-a-guided-tour-of-flake.nix/: practical nix flake anatomy
- https://wiki.nixos.org/wiki/Overlays: using overlays and examples
- https://nixos.wiki/wiki/Configuration_Collection: nix configuration collection
- https://nixos.org/manual/nixos/unstable/#sec-writing-modules: writing nixos modules
- https://github.com/mikeroyal/NixOS-Guide: nixos guide