{ config, pkgs, lib, inputs, ... }:
{
  config = lib.mkIf (lib.elem config.networking.hostName [ "FredOS-Gaming" "FredOS-Macbook" ]) {
    # Enable Gnome
    services.xserver.enable = true;
    services.displayManager.ly.enable = true;
    services.displayManager.defaultSession = "hyprland";
    services.desktopManager.gnome.enable = true;
    boot.plymouth.enable = false;

    # Flatpak for ad-hoc app installs via Bazaar
    services.flatpak.enable = true;

    # Add extensions, packages, and terminal
    environment.systemPackages = with pkgs; [
      ghostty
      gnomeExtensions.blur-my-shell
      gnomeExtensions.just-perfection
      gnomeExtensions.appindicator
      gnomeExtensions.hot-edge
      adwaita-icon-theme
      gnome-themes-extra
      adwaita-icon-theme-legacy
      papirus-icon-theme
    ];

    # Cursor theme — stylix.cursor in settings/stylix.nix owns the choice.
    environment.sessionVariables = {
      XCURSOR_THEME = "Bibata-Modern-Ice";
      XCURSOR_SIZE = "24";
      XCURSOR_PATH = lib.mkForce [
        "${pkgs.bibata-cursors}/share/icons"
        "$HOME/.icons"
        "$HOME/.local/share/icons"
      ];
    };

    # mutter VRR — stylix handles theme/icon dconf entries
    programs.dconf.profiles.user.databases = [{
      settings = {
        "org/gnome/desktop/interface" = {
          icon-theme = "WallpaperAdwaita";
        };
        "org/gnome/mutter" = {
          experimental-features = [ "variable-refresh-rate" ];
        };
      };
    }];

    qt = {
      enable = true;
      platformTheme.name = "adwaita";
      style.name = "adwaita-dark";
    };

    programs.xwayland.enable = true;
    programs.dconf.enable = true;

    # Home Manager GNOME settings
    home-manager.users.fred = { config, lib, pkgs, ... }: {
      # Stylix's qt target only supports qtct; disable it to silence the warning.
      stylix.targets.qt.enable = false;
      # Minimal titlebars — stylix manages the GTK theme; we layer our
      # headerbar shrink on top via programs.gtk.*.extraCss.
      gtk.enable = true;
      # gtk.gtk3.extraCss / gtk4.extraCss are no-ops once stylix owns the
      # theme — extra CSS has to go through stylix.targets.gtk.extraCss.
      stylix.targets.gtk.extraCss = ''
        headerbar { min-height: 0; padding: 0; margin: 0; }
        headerbar .title { font-size: 0; }
        window:backdrop {
          background-color: @window_bg_color;
          color: @window_fg_color;
        }
        window:backdrop headerbar {
          background-color: @headerbar_bg_color;
          color: @headerbar_fg_color;
        }
      '';

      # GNOME dconf settings — stylix owns colour-scheme, gtk-theme,
      # cursor-theme and accent-color now.
      dconf.settings = {
        "org/gnome/desktop/interface" = {
          enable-hot-corners = false;
        };

        # Wallpaper now set by stylix's gnome target.

        # Keyboard input sources
        "org/gnome/desktop/input-sources" = {
          sources = [
            (lib.hm.gvariant.mkTuple [ "xkb" "gb" ])
            (lib.hm.gvariant.mkTuple [ "xkb" "no" ])
          ];
        };

        # Window manager keybindings
        "org/gnome/desktop/wm/keybindings" = {
          close = ["<Super>q"];
          toggle-fullscreen = ["<Super>f"];
        };
        "org/gnome/desktop/wm/preferences" = {
          resize-with-right-button = lib.hm.gvariant.mkBoolean true;
          button-layout = "";
        };

        # Shell keybindings
        "org/gnome/shell/keybindings" = {
          show-screenshot-ui = ["<Shift><Super>s"];
        };

        # Custom keybindings
        "org/gnome/settings-daemon/plugins/media-keys" = {
          home = ["<Super>e"];
          control-center = ["<Super>i"];
          custom-keybindings = [
            "/org/gnome/settings-daemon/plugins/media-keys/custom-keybindings/custom0/"
          ];
        };

        "org/gnome/settings-daemon/plugins/media-keys/custom-keybindings/custom0" = {
          name = "Terminal";
          command = "ghostty";
          binding = "<Super>t";
        };

        # Mouse acceleration
        "org/gnome/desktop/peripherals/mouse" = {
          accel-profile = "flat";
        };

        # Just Perfection extension
        "org/gnome/shell/extensions/just-perfection" = {
          window-demands-attention-focus = true;
        };
      };
    };
  };
}