Reference

Enabling/disabling the cache

return [
  'cache' => [
    'pages' => [
      'active' => true
    ]
  ]
];

Cache driver

Set a different cache driver, default is file driver.

return [
  'cache' => [
    'driver' => 'memcached'
  ]
];

You can also set a registered custom cache driver here. Check out the plugin reference how to create a custom cache driver.