How to properly connect this project (library) to the project?

Question

Android

How to properly connect this project (library) to the project?
There is a project on github https://github.com/rwl/jOS that adapts the standard ios (swift) tools for java. Which is exactly what I need. How to add such a project to your own in Android Studio

Answer 1

As a submodule like
https://git-scm.com/docs/git-submodule