anchor.diff:  }:
   
   let
  -  version = "5.1.0";
  +  version = "5.2.0";
     inherit (lib) optional optionals optionalString;
     mesonFeatureFlag = opt: b:
       "-D${opt}=${if b then "enabled" else "disabled"}";
  
positive.code: { lib
  , stdenv
  , fetchFromGitHub
  , fetchpatch
  , pkg-config
  , glib
  , freetype
  
negative.code:     owner = "harfbuzz";
      repo = "harfbuzz";
      rev = version;
      sha256 = "1pry5w6anwi0qykpj1q3232r7cmfrw9yv4wwwrh028z0361fyxrv";
    };
  
    postPatch = ''
      patchShebangs src/*.py test
  