GCM requires you to create an API key. See http://developer.android.com/guide/google/gcm/index.html for further instructions.

APNS Certificates

APNS requires a certificate file. Apple distinguishes between development certificates (used for development versions of your iOS app) and production certificates (used when your iOS app is available in the app store). An incorrectly generated or missing certificate will prevent you from sending any push notifications.

After enabling the module and creating some domains go to Administration > People > Permissions (http://example.com/admin/people/permissions) to configure the module permissions.

Entity background allows you to attach images and parallax images to entity types.

https://www.drupal.org/project/entity_background

Goal

To have Twig C extension 'The Twig C extension is available' Enabled when we navigate to admin/reports/status of our Drupal 8 installation on XAMPP setup.

(This probably works for previous versions of Windows and for other setups like WAMP)

What does Twig C extension do?

Quote from Twig website: