The latest version of this document is available at https://android.googlesource.com/platform/ndk/+/master/docs/Onboarding.md.
Welcome to the Android NDK! This guide will explain how to get started working on the NDK (if you want to work with the NDK, see the user documentation).
Googlers: you‘ll also want to refer to go/ndk-onboarding which will describe any details not relevant to external contributors. Non-Googlers, don’t worry, you're not missing anything interesting, just boring things like instructions for how to work our release tooling.