{
  description = "System nixOS flake";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-24.11";
    # nixpkgs.url = "github:NixOS/nixpkgs/master";

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

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

    agenix = {
      url = "github:ryantm/agenix";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };

  outputs =
    {
      self,
      nixpkgs,
      lanzaboote,
      nixos-hardware,
      agenix,
      ...
    }@inputs:
    let
      username = "primary";
      system = "x86_64-linux";

    in
    {
      # desktop
      nixosConfigurations.yarn = nixpkgs.lib.nixosSystem {
        specialArgs = {
          hostname = "yarn";
          inherit inputs username;
        };
        modules = [
          ./system-yarn.nix
        ];
      };

      # laptop
      nixosConfigurations.mreow = nixpkgs.lib.nixosSystem {
        specialArgs = {
          hostname = "mreow";
          inherit inputs username;
        };
        modules = [
          ./system-mreow.nix
        ];
      };
    };
}