{
  description = "S41UC0 Nix Configurations";

  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable";
    home-manager.url = "github:nix-community/home-manager";
    home-manager.inputs.nixpkgs.follows = "nixpkgs";
  };

  inputs.lanzaboote = {
    url = "github:nix-community/lanzaboote/v1.1.0";
    inputs.nixpkgs.follows = "nixpkgs";
  };

  outputs = inputs@{ self, nixpkgs, home-manager, ... }: 
  let 
    filter = with nixpkgs.lib;
        folder: fileset.toList (fileset.fileFilter
		  (file:
		    hasSuffix "nix"
		      file.name)
		  folder);
    nixosConfig = {modules ? []}: nixpkgs.lib.nixosSystem {
      modules = modules;
      specialArgs = { inherit inputs filter home-manager; };
    };
  in
  {
    nixosConfigurations.p14s = nixosConfig {
      modules = [ 
        inputs.lanzaboote.nixosModules.lanzaboote
        ./devices/p14s
        ./styles/desktop.nix
      ];
    };

    apps.x86_64-linux.default = {
      type = "app";
      program = toString (nixpkgs.legacyPackages.x86_64-linux.writeShellScript "rebuild" ''
        exec sudo nixos-rebuild switch --flake . "$@"
      '');
    };
    
    apps.x86_64-linux.registerDevice = {
      type = "app";
      program = toString (nixpkgs.legacyPackages.x86_64-linux.writeShellScript "rebuild" ''
        [ -d ./devices/$HOST ] && exit 1
        mkdir -p ./devices/$HOST
        nixos-generate-config --show-hardware-config > ./devices/$HOST/hardware-config.nix
        cat>./devices/$HOST/default.nix<<EOF
        { ... }: 
        {
          imports = [ 
            ../../common
            ./hardware-configuration.nix   
          ];
          networking.hostName = "$HOST";
          system.stateVersion = "${nixpkgs.lib.trivial.release}"; # yes
        }
        EOF
      '');
    };

    devShells.x86_64-linux.default =
    let pkgs = nixpkgs.legacyPackages.x86_64-linux;
    in pkgs.mkShell {
      shellHook = ''
        echo "Building VM..."
        rm -rf *.qcow2
        nixos-rebuild build-vm --flake . && ./result/bin/run-*-vm
        exit
      '';
    };

  };
}