def execute!
      show_help if options.empty?
      show_version if options[:version]
      run_sketch if options[:run]
      watch_sketch if options[:watch]
      live if options[:live]
      create if options[:create]
      check if options[:check]
      install if options[:install]
    end
def execute!
      show_help if options.empty?
      show_version if options[:version]
      run_sketch if options[:run]
      watch_sketch if options[:watch]
      live if options[:live]
      create if options[:create]
      check if options[:check]
      install if options[:install]
    end
Dispatch central.