anchor.diff:  
     cargoSha256 = "awDVjJLwgpSMbwptmLhczaxB5HqvsdvEOUsLYb/zTUc=";
   
  -  nativeBuildInputs = [ pkg-config makeWrapper ];
  +  nativeBuildInputs = [ pkg-config makeBinaryWrapper ];
   
     buildInputs = [ icu fontconfig harfbuzz openssl ]
       ++ lib.optionals stdenv.isDarwin (with darwin.apple_sdk.frameworks; [ ApplicationServices Cocoa Foundation ]);
  
positive.code: , harfbuzz
  , openssl
  , pkg-config
  , makeWrapper
  , biber
  , icu
  }:
  
negative.code:   # https://github.com/tectonic-typesetting/tectonic/releases/tag/tectonic%400.7.0
    postInstall = ''
      wrapProgram $out/bin/tectonic \
        --prefix PATH : "${lib.getBin biber}/bin"
    '' + lib.optionalString stdenv.isLinux ''
      substituteInPlace dist/appimage/tectonic.desktop \
        --replace Exec=tectonic Exec=$out/bin/tectonic
  