# Contributing to this manual {#chap-contributing} The DocBook and CommonMark sources of NixOS' manual are in the [nixos/doc/manual](https://github.com/NixOS/nixpkgs/tree/master/nixos/doc/manual) subdirectory of the [Nixpkgs](https://github.com/NixOS/nixpkgs) repository. You can quickly check your edits with the following: ```ShellSession $ cd /path/to/nixpkgs $ ./nixos/doc/manual/md-to-db.sh $ nix-build nixos/release.nix -A manual.x86_64-linux ``` If the build succeeds, the manual will be in `./result/share/doc/nixos/index.html`.