anchor.diff:  stdenv.mkDerivation rec {
     name = "${product}-${version}";
     product = "vivaldi";
  -  version = "2.1.1337.51-1";
  +  version = "2.2.1388.37-1";
   
     src = fetchurl {
       url = "https://downloads.vivaldi.com/stable/${product}-stable_${version}_amd64.deb";
  -    sha256 = "00rxp6rardxjg17g2b28y2rj8szqlainp4ga6c58z981zkxvdlls";
  +    sha256 = "07q04lvwnjn5kprlwyndv9h2s25637ngchch26ka8lry1lxkdv55";
     };
   
     unpackPhase = ''
  
positive.code: , freetype, fontconfig, libXft, libXrender, libxcb, expat
  , libuuid
  , gstreamer, gst-plugins-base, libxml2
  , glib, gtk3, pango, gdk_pixbuf, cairo, atk, at-spi2-atk, gnome2
  , nss, nspr
  , patchelf, makeWrapper
  , proprietaryCodecs ? false, vivaldi-ffmpeg-codecs ? null
  
negative.code:   buildInputs = [
      stdenv.cc.cc stdenv.cc.libc zlib libX11 libXt libXext libSM libICE libxcb
      libXi libXft libXcursor libXfixes libXScrnSaver libXcomposite libXdamage libXtst libXrandr
      atk at-spi2-atk at-spi2-core alsaLib dbus cups gtk3 gdk_pixbuf libexif ffmpeg systemd
      freetype fontconfig libXrender libuuid expat glib nss nspr
      gstreamer libxml2 gst-plugins-base pango cairo gnome2.GConf
    ] ++ stdenv.lib.optional proprietaryCodecs vivaldi-ffmpeg-codecs;
  