{
  config,
  pkgs,
  ...
}: let
  # Dynamically turns off all unfocused monitors, and restores them on toggle
  toggleImmersive = pkgs.writeShellScriptBin "toggle-immersive" ''
    STATE_FILE="$XDG_RUNTIME_DIR/hypr_immersive_mode"

    if [ -f "$STATE_FILE" ]; then
      # 1. Restore: Reloading Hyprland snaps monitors back to your declared Nix defaults
      hyprctl reload
      rm "$STATE_FILE"
      ${pkgs.libnotify}/bin/notify-send -u low "Immersive Mode" "Deactivated — Displays restored."
    else
      # 2. Activate: Mark state and dynamically disable all non-focused monitors
      touch "$STATE_FILE"

      # Use jq to find every monitor that does NOT currently have focus
      for mon in $(${pkgs.hyprland}/bin/hyprctl monitors -j | ${pkgs.jq}/bin/jq -r '.[] | select(.focused == false) | .name'); do
        ${pkgs.hyprland}/bin/hyprctl keyword monitor "$mon, disable"
      done

      # OPTIONAL: Remove borders and gaps for a true cinema experience
      # ${pkgs.hyprland}/bin/hyprctl keyword general:gaps_in 0
      # ${pkgs.hyprland}/bin/hyprctl keyword general:gaps_out 0
      # ${pkgs.hyprland}/bin/hyprctl keyword general:border_size 0
      # ${pkgs.hyprland}/bin/hyprctl keyword decoration:rounding 0

      ${pkgs.libnotify}/bin/notify-send -u low "Immersive Mode" "Activated — Focused display only."
    fi
  '';
in {
  home.packages = [
    toggleImmersive
  ];
  wayland.windowManager.hyprland = {
    enable = true;

    settings = {
      # Bind to your preferred combo (e.g., Super + Alt + M)
      bind = [
        "SUPER ALT, M, exec, ${toggleImmersive}/bin/toggle-immersive"
      ];
    };
  };
}