noto-fonts-cjk: use typeface and version to generate git rev

      };

    };

  mkNotoCJK = { typeface, version, rev, sha256 }:

  mkNotoCJK = { typeface, version, sha256 }:

    stdenvNoCC.mkDerivation {

      pname = "noto-fonts-cjk-${lib.toLower typeface}";

      inherit version;

      src = fetchFromGitHub {

        owner = "googlefonts";

        repo = "noto-cjk";

        inherit rev sha256;

        rev = "${typeface}${version}";

        inherit sha256;

        sparseCheckout = [ "${typeface}/Variable/OTC" ];

      };

  noto-fonts-cjk-sans = mkNotoCJK {

    typeface = "Sans";

    version = "2.004";

    rev = "Sans2.004";

    sha256 = "sha256-IgalJkiOAVjNxKaPAQWfb5hKeqclliR4qVXCq63FGWY=";

  };

  noto-fonts-cjk-serif = mkNotoCJK {

    typeface = "Serif";

    version = "2.001";

    rev = "Serif2.001";

    sha256 = "sha256-y1103SS0qkZMhEL5+7kQZ+OBs5tRaqkqOcs4796Fzhg=";

  };