public function init_listeners( $callable ) {
    add_action( 'jetpack_sync_callable', $callable, 10, 2 );
    add_action( 'current_screen', array( $this, 'set_plugin_action_links' ), 9999 ); // Should happen very late.

    foreach ( self::ALWAYS_SEND_UPDATES_TO_THESE_OPTIONS as $option ) {
      add_action( "update_option_{$option}", array( $this, 'unlock_sync_callable' ) );
      add_action( "delete_option_{$option}", array( $this, 'unlock_sync_callable' ) );
    }

    foreach ( self::ALWAYS_SEND_UPDATES_TO_THESE_OPTIONS_NEXT_TICK as $option ) {
      add_action( "update_option_{$option}", array( $this, 'unlock_sync_callable_next_tick' ) );
      add_action( "delete_option_{$option}", array( $this, 'unlock_sync_callable_next_tick' ) );
    }

    // Provide a hook so that hosts can send changes to certain callables right away.
    // Especially useful when a host uses constants to change home and siteurl.
    add_action( 'jetpack_sync_unlock_sync_callable', array( $this, 'unlock_sync_callable' ) );

    // get_plugins and wp_version
    // gets fired when new code gets installed, updates etc.
    add_action( 'upgrader_process_complete', array( $this, 'unlock_plugin_action_link_and_callables' ) );
    add_action( 'update_option_active_plugins', array( $this, 'unlock_plugin_action_link_and_callables' ) );
  }