anchor.diff:  
   in stdenv.mkDerivation rec {
     pname = "openmoji";
  -  version = "12.4.0";
  +  version = "13.1.0";
   
     src = fetchFromGitHub {
       owner = "hfg-gmuend";
       repo = pname;
       rev = version;
  -    sha256 = "0zis0i7fn7dqv39c9ms7f1p4dqqzwdfwkdgrijaak1cmb8rkn3a0";
  +    sha256 = "sha256-7G6a+LFq79njyPhnDhhSJ98Smw5fWlfcsFj6nWBPsSk=";
     };
   
     nativeBuildInputs = [
  
positive.code:     install -Dm644 ${filename} $out/share/fonts/truetype/${filename}
    '';
  
    meta = with stdenv.lib; {
      license = licenses.cc-by-sa-40;
      maintainers = with maintainers; [ fgaz ];
      platforms = platforms.all;
  
negative.code:     description = "Open-source emojis for designers, developers and everyone else";
    };
  }
  