anchor.diff:  stdenv.mkDerivation rec {
     name = "kitty-${version}";
   
  -  src = fetchFromGitHub {
  -    version = 6;
  -    owner = "kovidgoyal";
  -    repo = "kitty";
  -    rev = "v${version}";
  +  src = fetchurl {
  +    url = "https://github.com/kovidgoyal/kitty/releases/download/v${version}/"
  +      + "${name}.tar.xz";
       sha256 = "f25224c0a5b0c6f32662d31452fd6fed1665e37f2a1acd193e1a8a838e86185f";
     };
   
  
positive.code: { stdenv
  , fetchFromGitHub
  , lib
  , ncurses
  , python3
  
  , dbus
  , fontconfig
  , harfbuzz_lib
  , libpng
  , libx11
  
negative.code:   buildInputs = [
      dbus
      fontconfig
      freetype
      harfbuzz_lib
      libpng
      libx11
  