{ config, pkgs, user, ... }:
{
  environment.sessionVariables = {
    XDG_SESSION_TYPE = "wayland";
    XDG_CURRENT_DESKTOP = "Hyprland";
    XCURSOR_SIZE = "24";
    GTK_ENABLE_DARK_MODE = "1";
    GTK_THEME = "Catppuccin-Mocha-Standard-Blue-Dark";
    GTK_ICON_THEME = "Papirus-Dark";
    # Use this instead of GTK_APPLICATION_PREFER_DARK_THEME for newer GTK apps:
    GTK_THEME_VARIANT = "dark";
    # For Qt apps (if any):
    QT_STYLE_OVERRIDE = "gtk2";
    # For Zen Browser (Firefox fork):
    MOZ_ENABLE_WAYLAND = "1";
    GSETTINGS_SCHEMA_DIR = "${pkgs.gsettings-desktop-schemas}/share/glib-2.0/schemas";
  };

    # Add other session-wide variables here (e.g., QT_QPA_PLATFORM, SDL_VIDEODRIVER)
}