code: public static Config loadConfig(URL configUrl, boolean useSystemEnvironment) {
          return loadConfig(ConfigParseOptions.defaults(),
                  ConfigResolveOptions.defaults().setUseSystemEnvironment(useSystemEnvironment),
                  configUrl);
      }
docs: Load, Parse & Resolve configurations from a URL, with default parse & resolve options.
  
  @param configUrl
  @param useSystemEnvironment
  {@code true} to resolve substitutions falling back to environment
  variables
  @return