NixOS Module Patterns

Directory structure

• modules/home/*.nix - Home-manager modules (user packages, dotfiles)
• modules/nixos/*.nix - NixOS modules (system services)
• hosts/*/ - Machine-specific configuration
• home/default.nix - Main home-manager entry point

Adding packages

nix
1home.packages = with pkgs; [
2  package-name
3] ++ lib.optionals (stdenv.hostPlatform.system == "x86_64-linux") [
4  x86-only-package
5];

Creating a module

nix
1{ pkgs, ... }:
2{
3  home.packages = with pkgs; [ mypackage ];
4  xdg.configFile."app/config.json".text = builtins.toJSON { setting = "value"; };
5}

Import in home/default.nix:

nix
1imports = [ ../modules/home/mymodule.nix ];