Up to date Android Studio/Linux Tutorial?

I’m trying to build the android demo app from SDL2-2.0.10 in Android Studio 3.5.1

I opened the android-project but I get a lot of errors with missing SDL2 module:

ERROR: Android NDK: Module main depends on undefined modules: SDL2

All the the tutorials I can find seem to be outdated or VS based.

Is there an up to date tutorial for Android Studio 3.5.1 on Linux?
How do I compile the SDL2 module?

Turns out I just needed to remember how to read…

I missed the part about symlink in README-andriod.md