{ config , lib , pkgs , ... }: with lib; let cfg = config.my.programs.miracast; in { options.my.programs.miracast.enable = mkEnableOption "miracast"; config = mkIf cfg.enable { networking.firewall = { allowedTCPPorts = [ 7236 7250 ]; allowedUDPPorts = [ 7236 5353 ]; }; users.users.moritz.packages = with pkgs; [ gnome-network-displays ]; }; }