{ pkgs, ... }:
pkgs.stdenv.mkDerivation rec {
  name = "merklecpp";

 src = pkgs.fetchFromGitHub {
         owner = "microsoft";
         repo = "merklecpp";
         rev = "master";
         sha256 = "jJJ6FEn+AkMknqun0GkXh5DSXsJnFbdE7U8BQ7Dd/Fw=";
       };

  prePatch = ''
  '';
  configurePhase = ''
  '';
  buildPhase = ''
  '';
  installPhase = ''
    mkdir -p $out/include
    mv merklecpp.h $out/include/merklecpp.h
  '';
}