anchor.diff:      url = "http://www.gust.org.pl/projects/e-foundry/lm-math/download/latinmodern-math-1959.zip";
       sha256 = "15l3lxjciyjmbh0q6jjvzz16ibk4ij79in9fs47qhrfr2wrddpvs";
     };
  +  camlpdf = ocamlPackages.camlpdf.overrideAttrs (o: {
  +    src = fetchFromGitHub {
  +      owner = "gfngfn";
  +      repo = "camlpdf";
  +      rev = "v2.2.1+satysfi";
  +      sha256 = "1s8v2i8nq52kz038bvc2n0spz68fpdq6kgxrabcs6zvml6n1frzy";
  +    };
  +  });
  +  otfm = ocamlPackages.otfm.overrideAttrs (o: {
  +    src = fetchFromGitHub {
  +      owner = "gfngfn";
  +      repo = "otfm";
  +      rev = "v0.3.2+satysfi";
  +      sha256 = "1h795pdi5qi2nwymsfvb53x56h9pqi9iiqbzw10mi6fazgd2dzhd";
  +    };
  +  });
   in
     stdenv.mkDerivation rec {
       name = "satysfi-${version}";
  -    version = "2018-03-07";
  +    version = "0.0.3";
       src = fetchFromGitHub {
         owner = "gfngfn";
         repo = "SATySFi";
  -      rev = "a050ec0906d083682c630b0dea68887415b5f53d";
  -      sha256 = "12bhl7s2kc02amr8rm71pihj203f2j15y5j0kz3swgsw0gqh81gv";
  +      rev = "v${version}";
  +      sha256 = "0qk284jhxnfb69s24j397a6155dhl4dcgamicin7sq04d0wj6c7f";
         fetchSubmodules = true;
       };
   
  
positive.code: { stdenv, fetchzip, fetchFromGitHub, ocamlPackages }:
  let
    lm = fetchzip {
      url = "http://www.gust.org.pl/projects/e-foundry/latin-modern/download/lm2.004otf.zip";
  
negative.code:       $out/share/satysfi
      '';
  
      nativeBuildInputs = [ ruby dune ];
  
      buildInputs = [ camlpdf otfm ] ++ (with ocamlPackages; [
        ocaml findlib menhir
        batteries camlimages core_kernel ppx_deriving uutf yojson
      ]);
  
      installPhase = ''
        cp -r ${ipaexfont}/share/fonts/opentype/* lib-satysfi/dist/fonts/
        cp -r ${junicode}/share/fonts/junicode-ttf/* lib-satysfi/dist/fonts/
        cp -r ${lm}/* lib-satysfi/dist/fonts/
        cp -r ${lm-math}/otf/latinmodern-math.otf lib-satysfi/dist/fonts/
        make install PREFIX=$out LIBDIR=$out/share/satysfi
  