protected function setBaseBox($config) {
    $base_box = $this->askChoice(
      "Which base box would you like to use?",
      [
        'geerlingguy/drupal-vm',
        'geerlingguy/ubuntu1604',
      ],
      0);

    switch ($base_box) {
      case 'geerlingguy/ubuntu1604':
      case 'geerlingguy/drupal-vm':
        $config->set('workspace', '/root');
        $config->set('extra_packages', [
          'patchutils',
          'sqlite',
        ]);
        $config->set('installed_extras', [
          'adminer',
          'selenium',
          'drush',
          'mailhog',
          'memcached',
          'nodejs',
          'solr',
          'xdebug',
        ]);
        break;
    }

    $config->set('base_box', $base_box);
  }