anchor.diff: -{ stdenv, fetchurl, unzip, makeWrapper, libX11, zlib, libSM, libICE, libXext
  -, freetype, libXrender, fontconfig, libXft, libXinerama, libnotify, glib
  -, gtk3, libappindicator-gtk3, curl }:
  +{ stdenv, fetchurl, unzip, makeWrapper, libX11, zlib, libSM, libICE
  +, libXext , freetype, libXrender, fontconfig, libXft, libXinerama
  +, libXfixes, libXScrnSaver, libnotify, glib , gtk3, libappindicator-gtk3
  +, curl }:
   
   let
   
  -  version = "1.2.15-590e8bc";
  +  version = "1.3.0-9b2ba62";
   
     rpath = stdenv.lib.makeLibraryPath
       [ libX11 zlib libSM libICE libXext freetype libXrender fontconfig libXft
         libXinerama stdenv.cc.cc.lib libnotify glib gtk3 libappindicator-gtk3
  -      curl ];
  +      curl libXfixes libXScrnSaver ];
   
   in
   
  
positive.code:   installPhase = ''
      # TODO: handle 32-bit arch?
      rm -r x86
  
      opt=$out/opt/hubstaff
      mkdir -p $out/bin $opt
      cp -r . $opt/
  
      prog=$opt/x86_64/HubstaffClient.bin.x86_64
  
      patchelf --set-interpreter $(cat ${stdenv.cc}/nix-support/dynamic-linker) $prog
      wrapProgram $prog --prefix LD_LIBRARY_PATH : ${rpath}
  
      ln -s $prog $out/bin/HubstaffClient
  
      # Why is this needed? SEGV otherwise.
      ln -s $opt/data/resources $opt/x86_64/resources
  
negative.code: 
    src = fetchurl {
      url = "https://hubstaff-production.s3.amazonaws.com/downloads/HubstaffClient/Builds/Release/${version}/Hubstaff-${version}.sh";
      sha256 = "1dxzyl3yxbfmbw1pv8k3vhqzbmyyf16zkgrhzsbm866nmbgnqk1s";
    };
  
    nativeBuildInputs = [ unzip makeWrapper ];
  
    unpackCmd = ''
      # MojoSetups have a ZIP file at the end. ZIP’s magic string is
      # most often PK\x03\x04. This has worked for all past updates,
      # but feel free to come up with something more reasonable.
      dataZipOffset=$(grep --max-count=1 --byte-offset --only-matching --text ''$'PK\x03\x04' $curSrc | cut -d: -f1)
      dd bs=$dataZipOffset skip=1 if=$curSrc of=data.zip 2>/dev/null
  