Big Blue Doors has recently shared a snippet from their latest handbook, offering a comprehensive guide on leveraging event management in Drupal. With Drupal transitioning to version 8 and adopting Symfony as its foundation, the inclusion of the event system, built on the Symfony event dispatcher component, marks a significant enhancement. The EventDispatcher component facilitates seamless communication among application components by dispatching events and enabling them to listen and respond accordingly. Throughout the request-handling process, Drupal dispatches various events, prompting subscribers to execute custom logic tailored to specific events. These responses range from adjusting settings in response to configuration changes to redirecting requests based on request parameters. All event objects extend the \Symfony\Component\EventDispatcher\Event class, providing pertinent information about the event. To subscribe to an event, developers must implement a ::getSubscribedEvents() method, declaring their intention to listen for events of a particular type. This is achieved by returning an associative array containing the event's unique name and the method to be invoked when the event is triggered, along with its optional priority level.