anchor.diff:      meta = with lib; {
         homepage = "https://github.com/gfngfn/SATySFi";
         description = "A statically-typed, functional typesetting system";
  +      changelog = "https://github.com/gfngfn/SATySFi/blob/v${version}/CHANGELOG.md";
         license = licenses.lgpl3;
         maintainers = [ maintainers.mt-caret maintainers.marsam ];
         platforms = platforms.all;
  
positive.code: { lib, stdenv, fetchzip, fetchFromGitHub, ruby, dune_2, ocamlPackages
  , ipaexfont, junicode, lmodern, lmmath
  }:
  let
  
negative.code: in
    stdenv.mkDerivation rec {
      pname = "satysfi";
      version = "0.0.6";
      src = fetchFromGitHub {
        owner = "gfngfn";
        repo = "SATySFi";
        rev = "v${version}";
        sha256 = "1wdmcz2b7v37msmsvjvbyj7x5a80qfws8a7w72q0g5959pw5fdxj";
        fetchSubmodules = true;
      };
  
  