{
  description = "Nixos config flake test";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
    nixos-wsl.url = "github:nix-community/NixOS-WSL/main";
  };
  outputs = { self, nixpkgs, nixos-wsl, nix, ... }@inputs:
    let
      system =
        if builtins ? currentSystem
        then builtins.currentSystem
        else "x86_64-linux";
      pkgs = import nixpkgs { inherit system; };
      installedPackages = (import ./installed-packages { inherit pkgs; });
    in
    {
      nixosConfigurations.drivebystation-nixos-wsl = nixpkgs.lib.nixosSystem {
        inherit system;
        modules = [
          nixos-wsl.nixosModules.default
          ./systems/drivebystation-nixos-wsl/configuration.nix
          {
            system.stateVersion = "24.05";
            wsl.enable = true;
            nix.settings.experimental-features = [ "nix-command" "flakes" ];
            environment.systemPackages = [

            ]
            ++ installedPackages.mkPackages.packages;
            programs.nix-ld = {
              enable = true;
              package = pkgs.nix-ld-rs;
            };
          }
        ];
        specialArgs = { inherit inputs; };
      };
      nixosConfigurations.th0nkpad-nixos = nixpkgs.lib.nixosSystem {
        inherit system;
        modules = [
          ./systems/th0nkpad-nixos/configuration.nix
          {
            system.stateVersion = "24.05";
            nix.settings.experimental-features = [ "nix-command" "flakes" ];
            # Define a user account. Don't forget to set a password with ‘passwd’.
            users.users.andreas = {
              isNormalUser = true;
              description = "Andreas";
              extraGroups = [ "networkmanager" "wheel" ];
              packages = with pkgs; [
                flatpak
                gnome-software
                #  thunderbird
              ];
            };

            # Install firefox.
            programs.firefox.enable = true;

            # Allow unfree packages
            nixpkgs.config.allowUnfree = true;

            # Set up system Packages
            environment.systemPackages = with pkgs; [
              git
              #  vim # Do not forget to add an editor to edit configuration.nix! The Nano editor is also installed by default.
              #  wget
            ]
            ++ installedPackages.mkPackages.packages;
            programs.nix-ld = {
              enable = true;
              package = pkgs.nix-ld-rs;
            };
            services.flatpak.enable = true;
            systemd.services.flatpak-repo = {
              wantedBy = [ "multi-user.target" ];
              path = [ pkgs.flatpak ];
              script = ''
                flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo
              '';
            };
          }
        ];
        specialArgs = { inherit inputs; };
      };
    };
}