Introducing NDK r21: our first Long Term Support release
17 October 2019
[ https://android-developers.googleblog.com/2019/10/introducing-ndk-r21-our-first-long-term.html ]
Использование NDK в своих приложениях
https://developer.android.com/ndk/index.html
Securing API Keys using Android NDK [ https://blog.mindorks.com/securing-api-keys-using-android-ndk ]