anchor.diff:        $out/bin/upwork \
         --prefix XDG_DATA_DIRS : "${gtk3}/share/gsettings-schemas/${gtk3.name}/" \
         --prefix LD_LIBRARY_PATH : ${libPath}
  +    runHook postInstall
     '';
   
     meta = with lib; {
  
positive.code:   '';
  
    installPhase = ''
      mv usr $out
      mv opt $out
      sed -e "s|/opt/Upwork|$out/bin|g" -i $out/share/applications/upwork.desktop
  
negative.code: { lib, stdenv, fetchurl, dpkg, wrapGAppsHook, autoPatchelfHook
  , alsaLib, atk, at-spi2-atk, at-spi2-core, cairo, cups, dbus, expat, fontconfig, freetype
  , gdk-pixbuf, glib, gtk3, libnotify, libX11, libXcomposite, libXcursor, libXdamage, libuuid
  , libXext, libXfixes, libXi, libXrandr, libXrender, libXtst, nspr, nss, libxcb
  