{
  description = "flake for matt-nixos";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
#    impermanence.url = "github:nix-community/impermanence";
    lanzaboote = {
      url = "github:nix-community/lanzaboote/v0.3.0";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };

#  outputs = { self, nixpkgs, impermanence, lanzaboote } @ inputs: {
  outputs = { self, nixpkgs, lanzaboote } @ inputs: {
    nixosConfigurations = {
      "matt-nixos" = nixpkgs.lib.nixosSystem {
        system = "x86_64-linux";
        modules = [
#          inputs.impermanence.nixosModules.impermanence
          inputs.lanzaboote.nixosModules.lanzaboote
          ./configuration.nix
 #         ./impermanence.nix
        ];
      };
    };
  };
}