How to build Facial AR remote animating Demo

https://blogs.unity3d.com/2018/08/13/facial-ar-remote-animating-with-ar/

as you see, it provides full source code in GIT

as below :

https://github.com/Unity-Technologies/facial-ar-remote

However, AR-kit package has been deprecated from the Asset Store. So How can I build demo for facial AR animating demo?

is there any other private GIT for AR-kit package?

To build this, I already purchased IphoneX and learned MAYA 3D rigging animation.

Please give me all kinds of advice to build this Animation Demo.

Thank you in advance. Very Respectfully.