# Digging Deeper
Welcome to the "Digging Deeper" section of the Krayin documentation. Here, we will explore various advanced topics related to Krayin, which will enable you to customize and extend your CRM platform to suit your specific needs.
We expect you to have knowledge of creating packages in Laravel. If you are new to package development, we recommend referring to the Package Development section for a primer on creating and managing packages in Laravel.
# Events and Event Handlers
Events and event handlers provide a powerful way to extend the functionality of Krayin by allowing you to react to specific actions or triggers within the application. We will show you how to utilize events and event handlers effectively, enabling you to integrate custom functionalities and automate processes.
# Helpers
Krayin includes a comprehensive set of helper functions that simplify common development tasks and enhance productivity. We will explore the various helper functions available, explaining their purpose and usage to assist you in writing clean and efficient code.
# Overriding Core Models
Sometimes, you may need to modify or extend the default behavior of Krayin's core models to accommodate your specific business requirements. We will demonstrate how to override core models effectively, enabling you to customize the behavior of Krayin without modifying the underlying codebase.