How does this work ?

How to add it to the project - you are described well.
But! Please tell us how it works or provide a working example with perehomy on screens and different kinds of navigation (TabBar, Drawer).

Review the existing project documentation and examples to find where usage guidance belongs. Add a working example using perehomy with screens and both TabBar and Drawer navigation; done means a newcomer can follow the example to understand how the library works.

Written by the indexing model from the issue text.