{cabal} :

cabal.mkDerivation (self : {
  pname = "base64-string";
  version = "0.2";
  sha256 = "0pkhrimabacsjalzq0y3a197fqfbspsbv8xszzg4vbb1fb59dj1y";
  meta = {
    homepage = "http://urchin.earth.li/~ian/cabal/base64-string/";
    description = "Base64 implementation for String's.";
    license = "unknown";
    platforms = self.ghc.meta.platforms;
    maintainers = [ self.stdenv.lib.maintainers.simons ];
  };
})