{
  description = "flake for matt-nixos";

  inputs = {
    # Common
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";

    # Desktop
    kde.url = "github:nix-community/kde2nix";
    nix-flatpak.url = "github:gmodena/nix-flatpak";
    impermanence.url = "github:nix-community/impermanence";
    home-manager.url = "github:nix-community/home-manager";
    home-manager.inputs.nixpkgs.follows = "nixpkgs";
    lanzaboote = {
      url = "github:nix-community/lanzaboote/v0.3.0";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    # Pi4
    nixos-hardware.url = "github:NixOS/nixos-hardware/master";
  };

  outputs = { self, nixpkgs, lanzaboote, impermanence, kde, nix-flatpak, home-manager, nixos-hardware } @ inputs: {
    nixosConfigurations = {
      # Desktop
      "matt-nixos" = nixpkgs.lib.nixosSystem {
        system = "x86_64-linux";
        modules = [
          impermanence.nixosModules.impermanence
          lanzaboote.nixosModules.lanzaboote
          kde.nixosModules.plasma6
          nix-flatpak.nixosModules.nix-flatpak
          ./configuration.nix
          ./impermanence.nix
          home-manager.nixosModules.home-manager
          {
            home-manager.useGlobalPkgs = true;
            home-manager.useUserPackages = true;
            home-manager.users.matt = import ./home.nix;
          }
        ];
      };

      # Pi4
      "nixos-pi4" = nixpkgs.lib.nixosSystem {
        system = "aarch64-linux";
        modules = [
          nixos-hardware.nixosModules.raspberry-pi-4
          ./configuration-pi4.nix
        ];
      };
    };
  };
}