{ cfg, config, lib, pkgs, inputs, hypr-plugin-dir, ... }:
{
  imports = [
    inputs.dms.nixosModules.greeter
  ];

  boot = {
    loader.systemd-boot.enable = true;
    loader.efi.canTouchEfiVariables = true;
    plymouth.enable = true;
  };

  networking = {
    networkmanager = {
      enable = true;
    };

    firewall = {
      enable = true;

      # Open ports in the firewall.
      allowedTCPPorts = [ 21 22 80 443 4070 5037 ];
      allowedUDPPorts = [ 4070 ];

      allowedTCPPortRanges = [
        { from = 8000; to = 8010; }
      ];

      allowPing = true;
    };
  };

  i18n= {
    defaultLocale = "en_US.UTF-8";
    inputMethod = {
      enable = true;
      type = "fcitx5";
      fcitx5 = {
        waylandFrontend = true;
        addons = with pkgs; [
          fcitx5-mozc
          fcitx5-gtk
          qt6Packages.fcitx5-chinese-addons
        ];
      };
    };
  };

  services = {
    # for iphone screencasting
    # avahi = {
    #   enable = true;
    #   nssmdns4 = true;
    #   publish = {
    #     enable = true;
    #     userServices = true;
    #   };
    # };

    greetd = {
      enable = true;
      restart = true;
      # settings = {
      #   default_session = {
      #     command = "${pkgs.tuigreet}/bin/tuigreet --cmd start-hyprland";
      #   };
      # };
    };

    libinput.enable = true;
    blueman.enable = true;
    gvfs.enable = true;

    pulseaudio.enable = false;
    upower.enable = true;
  };

  security.pam.services.hyprlock = {};
  # environment = {
  #   etc = {
  #     "greetd/environments".text = ''
  #       Hyprland
  #     '';
  #   };
  # };

  fonts = {
    packages = with pkgs; [
      noto-fonts
      noto-fonts-cjk-sans
      noto-fonts-cjk-serif
      noto-fonts-color-emoji
      # liberation_ttf
      # fira-code-symbols
      mplus-outline-fonts.githubRelease
      # dina-font
      # nerd-fonts.fira-code
      # nerd-fonts.droid-sans-mono
    ];

    fontconfig = {
      enable = true;
      includeUserConf = true;
    };
  };

  nix.settings = {
    substituters = ["https://hyprland.cachix.org"];
    trusted-public-keys = ["hyprland.cachix.org-1:a7pgxzMz7+chwVL3/pzj6jIBMioiJM7ypFP8PwtkuGc="];
    trusted-users = [ "root" "@wheel" ];
    allowed-users = [ "root" "@wheel" ];
  };

  nix.gc = {
      automatic = true;
      dates = "weekly";
      options = "--delete-older-than 7d";
  };
  nix.optimise = {
    automatic = true;
    dates = [ "00:00" ];
  };

  users.users.liamm = {
    isNormalUser = true;
    description = "liamm";
    extraGroups = [ "networkmanager" "wheel" "disk" "power" "video" "davfs2" "input" ];
  };

  programs = {
    steam = {
      enable = true;
      remotePlay.openFirewall = true;
      dedicatedServer.openFirewall = true;
    };

    hyprland = {
      enable = true;
      package = inputs.hyprland.packages.${pkgs.system}.hyprland;
      portalPackage = inputs.hyprland.packages.${pkgs.system}.xdg-desktop-portal-hyprland;
      xwayland.enable = true;
      withUWSM = true;
      plugins = [ ];
    };

    dank-material-shell.greeter = {
      enable = true;
      compositor.name = "hyprland";
      configHome = "${cfg.homeDirectory}/.config";
    };
    # river-classic = {
    #   enable = true;
    #   xwayland.enable = true;
    # };

    gnupg.agent = {
      enable = true;
      enableSSHSupport = true;
    };

    # hyprlock.enable = true;
    dconf.enable = true;
    nix-ld = {
      enable = true;
      libraries = with pkgs; [
        fontconfig
        libxkbcommon
        vulkan-loader
      ];
    };
    mtr.enable = true;
  };

  lib.inputMethod.fcitx5.waylandFrontend = true;

  environment.systemPackages = with pkgs; [
    bat
    # bolt
    discord
    fd
    file
    ghostty
    git
    glib
    gnome-keyring
    libdrm
    libnotify
    mesa
    neovim
    # qmk
    ripgrep
    spotify
    unzip
    # usbutils
    # uxplay
    # vial
    vim
    waypipe
    wget
    wl-clipboard
    xdg-user-dirs
    zip
  ];

  environment.sessionVariables = {
    HYPR_PLUGIN_DIR = hypr-plugin-dir;
  };
 
  zramSwap = {
    enable = true;
    algorithm = "zstd";
  };

  xdg = {
    mime.enable = true;
    portal = {
      enable = true;
      # wlr.enable = true;
      extraPortals = with pkgs;[ 
        xdg-desktop-portal-gtk 
        # xdg-desktop-portal-wlr
      ];
      config = {
        common = {
          default = [ "gtk" ];
        };
      };
    };
  };

}