anchor.diff:  
     NIX_CFLAGS_COMPILE = [
       "-Wno-error=misleading-indentation"
  +    "-Wno-error=deprecated-declarations"
     ];
   
     meta = with lib; {
       description = "GUI Firewall Management Application";
  -    homepage    = "https://github.com/fwbuilder/fwbuilder";
  -    license     = licenses.gpl2;
  -    platforms   = platforms.linux;
  +    longDescription = ''
  +      Firewall Builder is a GUI firewall management application for iptables,
  +      PF, Cisco ASA/PIX/FWSM, Cisco router ACL and more. Firewall configuration
  +      data is stored in a central file that can scale to hundreds of firewalls
  +      managed from a single UI.
  +    '';
  +    homepage = "https://github.com/fwbuilder/fwbuilder";
  +    license = licenses.gpl2Only;
  +    platforms = platforms.linux;
       maintainers = [ maintainers.elatov ];
     };
   }
  
positive.code: 
    nativeBuildInputs = [
      cmake
      wrapQtAppsHook
    ];
  
  
negative.code: , stdenv
  , fetchFromGitHub
  , cmake
  , ninja
  , wrapQtAppsHook
  , wayland
  , wayland-protocols
  