anchor.diff:  , fetchFromGitHub
   , pantheon
   , pkgconfig
  -, vala
  +, vala_0_46
   , cmake
   , ninja
   , gtk3
  
positive.code:   nativeBuildInputs = [
      cmake
      ninja
      vala
      pkgconfig
      wrapGAppsHook
    ];
  
negative.code:   meta = with stdenv.lib; {
      description = "Markdown notes editor and manager designed for elementary OS"
      + stdenv.lib.optionalString withPantheon " - built with Contractor support";
      homepage = "https://github.com/Philip-Scott/Notes-up";
      license = licenses.gpl2;
      maintainers = with maintainers; [ davidak worldofpeace ];
      platforms = platforms.linux;
  