anchor.diff:      "-Dhttpd=${apacheHttpd.out}/bin/httpd"
       "-Dmodules_path=${apacheHttpd}/modules"
       "-Dsystemduserunitdir=${placeholder "out"}/etc/systemd/user"
  -    # In 3.34.0 it defaults to false but it is silently ignored and always installed.
  -    # Let’s add it anyway in case they decide to make build respect the option in the future.
  -    "-Dnautilus_extension=true"
     ];
   
     nativeBuildInputs = [
  
positive.code:     itstool
      libxml2
      wrapGAppsHook
      python3
    ];
  
    buildInputs = [
      gtk3
      glib
      nautilus
      libnotify
      libcanberra-gtk3
      systemd
    ];
  
  
negative.code: { stdenv
  , lib
  , gettext
  , meson
  , ninja
  , fetchurl
  , apacheHttpd
  , pkg-config
  , glib
  , libxml2
  , systemd
  , wrapGAppsHook
  , itstool
  , mod_dnssd
  , gnome
  }:
  
  stdenv.mkDerivation rec {
    pname = "gnome-user-share";
    version = "43.alpha";
  
    src = fetchurl {
      url = "mirror://gnome/sources/gnome-user-share/${lib.versions.major version}/gnome-user-share-${version}.tar.xz";
      sha256 = "7XmBH77PI6o0rIUx9j7y4nSw73/CjyXo7Iz3Oy9DPpo=";
    };
  
    preConfigure = ''
      sed -e 's,^LoadModule dnssd_module.\+,LoadModule dnssd_module ${mod_dnssd}/modules/mod_dnssd.so,' \
  