{
  description = "NixOS configuration";

  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
    home-manager.url = "github:nix-community/home-manager";
    home-manager.inputs.nixpkgs.follows = "nixpkgs";
  };
  outputs = inputs@{ self, nixpkgs, home-manager, ... }:
    let
      system = "x86_64-linux";
      pkgs = import nixpkgs {
        inherit system;
        config.allowUnfree = true;
      };
      lib = nixpkgs.lib;
    in {
        nixosConfigurations = {
        nixos = lib.nixosSystem {
        system = "x86_64-linux";
          modules = [
           ./configuration.nix
           home-manager.nixosModules.home-manager {
             home-manager.useGlobalPkgs = true;
             home-manager.useUserPackages = true;
             home-manager.users.dave = import ./user/home.nix;
          # Optionally, use home-manager.extraSpecialArgs to pass
           # arguments to home.nix
            }
         ];
       };
     };
   };
}
