anchor.diff:    makeFlags = [ "PARALLEL=-j$(NIX_BUILD_CORES)" "bower" "man" ];
   
     installPhase = ''
  +    runHook preInstall
       mkdir -p $out/bin
       mv bower $out/bin/
       mkdir -p $out/share/man/man1
       mv bower.1 $out/share/man/man1/
  +    runHook postInstall
     '';
   
     enableParallelBuilding = true;
  
positive.code:     homepage = "https://github.com/wangp/bower";
      description = "A curses terminal client for the Notmuch email system";
      maintainers = with maintainers; [ erictapen ];
      license = licenses.gpl3;
      platforms = platforms.linux;
    };
  }
  
negative.code: 
  stdenv.mkDerivation rec {
    pname = "notmuch-bower";
    version = "0.13";
  
    src = fetchFromGitHub {
      owner = "wangp";
      repo = "bower";
      rev = version;
      sha256 = "0r5s16pc3ym5nd33lv9ljv1p1gpb7yysrdni4g7w7yvjrnwk35l6";
    };
  
    nativeBuildInputs = [ gawk mercury pandoc ];
  