{
  description = "NixOS configuration";
  
  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs/nixos-22.11";

    unstable.url = "github:nixos/nixpkgs/nixos-unstable";

    home-manager.url = "github:nix-community/home-manager/release-22.11";
    home-manager.inputs.nixpkgs.follows = "nixpkgs";

    agenix.url = "github:ryantm/agenix";
  };

  outputs = inputs@{ nixpkgs, unstable, home-manager, agenix, ... }:
  let
    system = "x86_64-linux";
  in
  {
    nixosConfigurations =
      let
        # Inject unstable for inputs for modules
        defaults = { pkgs, ... }: {
          _module.args.unstable = import inputs.unstable {
            inherit (pkgs.stdenv.targetPlatform) system;
            config.allowUnfree = true;
          };
        };
      in {
        smallinux = nixpkgs.lib.nixosSystem {
          system = "x86_64-linux";

          modules = [
            defaults
            home-manager.nixosModules.home-manager
            agenix.nixosModule

            {
              networking.hostName = "smallinux";
            }

            ./common.nix
            ./hosts/smallinux.nix
          ];
        };
        xps15 = nixpkgs.lib.nixosSystem {
          system = "x86_64-linux";

          modules = [
            defaults
            home-manager.nixosModules.home-manager
            agenix.nixosModule

            {
              networking.hostName = "xps15";
            }

            ./common.nix
            ./hosts/xps15.nix
          ];
        };
      };
  };
}