In this chapter, we saw how to create the Bootstrap of an installable module with just one file. We also learned how to use Smarty templates in a module by building a small configuration form, and how to register merchant choices in the configuration table of the PrestaShop database.

In the next chapter, we will talk about the concept of hooks: what they're for and how to use them. We will also build the first interaction between the module and the front office.