Drupal modules

The first type of project is known as a module.

What is a module?

A module is a code that leverages Drupal’s framework for backend customization. This often modifies the Drupal application and is processed within the server. The core itself organizes its features by leveraging modules. This way, each application can control which core modules are installed based on the desired needs of the application.

Modules have compatibility with the core. Every major version of the core modifies its framework. Given the framework changes, modules must provide metadata that defines their compatibility with major core versions. It should not be assumed that every module found on drupal.org is compatible with the version of Drupal on the application. In fact, given that Drupal now has 10 major versions, basic searches for modules can find modules dating back to early versions of Drupal. Popular modules from earlier versions may have even been moved into core in later...