{
  description = "parsec system and home configuration";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
    nixos-hardware.url = "github:NixOS/nixos-hardware";
    nix-flatpak.url = "github:gmodena/nix-flatpak";

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

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

  outputs = { nixpkgs, nixos-hardware, home-manager, firefox-nightly, nix-flatpak, ... }:
  let
    system = "x86_64-linux";
    pkgs   = import nixpkgs { 
      inherit system; 
      config.allowUnfree = true;
    };
  in
  {
    nixosConfigurations.parsec = nixpkgs.lib.nixosSystem {
      specialArgs = {
        inherit firefox-nightly;
      };

      modules = [
        { nixpkgs.hostPlatform = system; }

        nixos-hardware.nixosModules.framework-desktop-amd-ai-max-300-series
        nix-flatpak.nixosModules.nix-flatpak

        ./nixos/hardware-configuration.nix
        ./nixos/configuration.nix

        { 
          users.users.tester = {
	    isNormalUser = true;
	    home         = "/home/tester";
	    shell        = pkgs.zsh;
	    extraGroups  = ["wheel" "networkmanager" "video" "render"];
          };
        }
      ];
    };

    homeConfigurations.tester = home-manager.lib.homeManagerConfiguration {
      inherit pkgs;

      modules = [
        nix-flatpak.homeManagerModules.nix-flatpak

        ./nixos/home-tester.nix
      ];
    };
  };
}