{ ... }: {
  #MANPAGER='nvim +Man!'

    # Allow unfree packages
    #unstable.config.allowUnfree = true;
  { nixpkgs.config.allowUnfree = true; }

  ( let
    pkgs2 = nixpkgs.legacyPackages."x86_64-linux";
  in 
  {
    nixpkgs.overlays = [ overlays.unstable-packages ];

    nix.settings.experimental-features = [ "nix-command" "flakes" ];

    # https://lix.systems/ Lix is a modern, delicious implementation of the Nix package manager,
    # focused on correctness, usability, and growth – 
    # and committed to doing right by its community.
    nix.package = pkgs2.lix;

    # This value determines the NixOS release from which the default
    # settings for stateful data, like file locations and database versions
    # on your system were taken. It‘s perfectly fine and recommended to leave
    # this value at the release version of the first install of this system.
    # Before changing this value read the documentation for this option
    # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
    system.stateVersion = "24.05"; # Did you read the comment?
  })
  nix-flatpak.nixosModules.nix-flatpak

  ./hardware-configuration.nix
  #nixos-hardware.nixosModules.lenovo-thinkpad-t14-amd-gen1

  ./modules/basic_system_config.nix
  ./modules/networking.nix
  ./modules/boot_theming.nix

  ./modules/specific_hardware/scan_and_print.nix
  ./modules/specific_hardware/fwupd.nix
  ./modules/specific_hardware/bluetooth.nix

  ./modules/sec_auth/firejail.nix
  ./modules/sec_auth/login-manager.nix
  ./modules/sec_auth/users_and_permissions.nix
  ./modules/sec_auth/ssh.nix

  ./modules/software/software.nix
  ./modules/software/game.nix
  ./modules/software/audio_video.nix
  ./modules/software/obs-studio.nix

  ./modules/wm_and_de/hyprland.nix

  ./modules/pkg_mgrmnt/flatpak.nix
  ./modules/pkg_mgrmnt/podman.nix
  ./modules/pkg_mgrmnt/store_pkg_file.nix

  ./modules/software/nix-helper/index.nix
  ./modules/software/nix-helper/doc.nix
  ./modules/software/nix-helper/nix-ld.nix

  ./modules/software/browser/firefox.nix
  ./modules/software/browser/brave.nix
}