anchor.diff:  
   mkDerivation rec {
     pname = "telegram-desktop";
  -  version = "1.9.4";
  +  version = "1.9.7";
     # Note: Due to our strong dependency on the Arch patches it's probably best
     # to also wait for the Arch update (especially if the patches don't apply).
   
     # Telegram-Desktop with submodules
     src = fetchurl {
       url = "https://github.com/telegramdesktop/tdesktop/releases/download/v${version}/tdesktop-${version}-full.tar.gz";
  -    sha256 = "1ldsgbix0ca4pl2z55wiz90ll3542zsm9slayrzyr7b2jw7arxwy";
  +    sha256 = "1hj7bv11alc8cfffy0k3za4missdr44cdmia93xn77w012qjn8a4";
     };
   
     # Arch patches (svn export telegram-desktop/trunk)
     archPatches = fetchsvn {
       url = "svn://svn.archlinux.org/community/telegram-desktop/trunk";
       # svn log svn://svn.archlinux.org/community/telegram-desktop/trunk
  -    rev = "553350";
  -    sha256 = "05fyij490flrbn4jfwhm8gx9imh0wfby4j9fj69f45qgkpsd7ajb";
  +    rev = "554983";
  +    sha256 = "02gk5dlrmxvyl7w1yxmwclknk1k9drpx6rxqc6vmmw85l763m95j";
     };
   
     # Note: It would be best if someone could get as many patches upstream as
     # possible (we currently depend a lot on custom patches...).
     patches = [
       "${archPatches}/0005-Use-system-wide-fonts.patch"
  -    "${archPatches}/0006-Revert-Disable-DemiBold-fallback-for-Semibold.patch"
     ];
   
     postPatch = ''
       substituteInPlace Telegram/SourceFiles/platform/linux/linux_libs.cpp \
         --replace '"appindicator3"' '"${libappindicator-gtk3}/lib/libappindicator3.so"'
  +    substituteInPlace Telegram/lib_spellcheck/spellcheck/platform/linux/linux_enchant.cpp \
  +      --replace '"libenchant-2.so.2"' '"${enchant2}/lib/libenchant-2.so.2"'
     '';
   
     # We want to run wrapProgram manually (with additional parameters)
  
positive.code:   # https://github.com/NixOS/nixpkgs/pull/75210
  
    installPhase = ''
      install -Dm755 bin/Telegram $out/bin/telegram-desktop
  
      mkdir -p $out/share/{kservices5,applications,metainfo}
      sed "s,/usr/bin,$out/bin,g" "../lib/xdg/tg.protocol" > "$out/share/kservices5/tg.protocol"
  
negative.code:     "-DTDESKTOP_DISABLE_DESKTOP_FILE_GENERATION=ON"
      "-DTDESKTOP_USE_PACKAGED_TGVOIP=OFF"
      #"-DDESKTOP_APP_SPECIAL_TARGET=\"\"" # TODO: Error when set to "": Bad special target '""'
      "-DTDESKTOP_LAUNCHER_BASENAME=telegramdesktop" # Note: This is the default
    ];
  
    # Note: The following packages could be packaged system-wide, but it's
  