Event notifications play a crucial role in ensuring people attend scheduled events, as they often forget without reminders. The Nylas Ruby SDK offers methods for creating notifications to improve attendance, including emails and webhooks for platforms like Slack. To send email reminders, users create a Ruby script to set up an event and send alerts to participants before it begins. Similarly, integrating event notifications with Slack involves setting up a separate workspace, creating a Slack application, and using webhooks to send reminders. These methods, facilitated by the Nylas Ruby SDK, are designed to be straightforward, enhancing the likelihood of event participation.