{
  description = "My NixOS system configuration";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
    nix-software-center.url = "github:vlinkz/nix-software-center";
    nix-doom-emacs.url = "github:nix-community/nix-doom-emacs";
    home-manager = {
      url = "github:nix-community/home-manager";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };

  outputs = { self, nixpkgs, home-manager, ... }@inputs: {
    nixosConfigurations.ultrapc = nixpkgs.lib.nixosSystem {
      system = "x86_64-linux";
      specialArgs = { inherit inputs; };
      modules = [
        ./ultrapc/configuration.nix
      ];
    };
    defaultPackage.x86_64-linux = home-manager.defaultPackage.x86_64-linux;
    homeConfigurations = {
      ultra = home-manager.lib.homeManagerConfiguration {
        pkgs = nixpkgs.legacyPackages.x86_64-linux;
        extraSpecialArgs = { inherit inputs; };
        modules = [ ./ultrapc/home.nix ];
      }; 
    };
  };
}