When looking into our directory via `ls`, we can see that a new directory called `RIOT` has been created. This directory contains the RIOT source code. If you were to push your project to a git hosting service, the `RIOT` directory would not be included in the repository. Instead, the repository would contain a reference to the commit of the RIOT repository that you have added as a submodule. This way, the repository stays small and only contains the code that you have written and not the entire RIOT source code.
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