Build Android-SDK2.0

Hi.

I would like to build NeoSmartpen/Android-SDK2.0.
1. install Android Studio 4.2.1
2. clone using Android Studio Menu - File - Get from Version Control (URL: https://github.com/NeoSmartpen/Android-SDK2.0.git)

But I don't know what to do next.
Can I get help with the problem?
