FusionCMS is a modular platform; meaning, you may extend the functionality and feature-set of the CMS through an organized manner. When creating modules that extend the CMS outside of the core set of features, we call these Add-on Modules.
Add-on Module Responsibility
Modules hold a different role in the CMS than most other CMS'. Instead of modules driving both the feature set as well as content needs; modules in FusionCMS extend and provide features to the platform as a whole. So, rather than creating a module dedicated to a Blog, the focus should be on "what makes up a blog?" and lean on the Matrix to provide the scaffold for the needs of the content.
Add-on modules can range in complexity as well. They can cover the needs of just housing a few helper methods to full-fledged feature sets such as eCommerce and other complex needs.
As FusionCMS is built on top of Laravel, working knowledge of Laravel is a must. If you are new to Laravel, you will want to ensure that you understand some core fundamentals of programming in PHP such as object oriented programming, namespaces and package management through Composer.
For supplemental learning, we highly recommend both Laracasts and CodeCourse.
Checkout the Getting Started guide next to learn how to start creating.