Modules allow to extend FreeScout functionality (just like WordPress plugins). Every single aspect of FreeScout can be adjusted via modules. It is achieved by adding actions/filters to the core.

If you need to add some action/filter to the application, just create a pull request. If you need to adjust some existing module - see this.

Modules are developed using Laravel-Modules v2 package (documentation).

FreeScout Modules Development Guide