These modules are often kept as separate repositories and are included in the main application as dependencies. Large-scale apps are usually built with modules that are developed by different teams and maintained by different people. In this blog post, we’ll take a look at how to use Git submodules, some of the pros and cons of using them, and a small tutorial on how to get started. They allow you to include one or more external Git repositories within your own repository, making it easy to keep track of and update those dependencies. Git submodules are a powerful tool for managing dependencies in your codebase.