Bazel is Google’s own build tool. Bazel has built-in support for building both client and server software, including client applications for both Android and iOS platforms. It also provides an extensible framework that you can use to develop your own build rules.
Bazel builds almost all Google products: Google Search, GMail, Google Docs, …
Firebase is an app development platform that provides integrated tools to help you build, grow and monetize your apps. The Firebase SDK enables access to the Firebase services in an intuitive and idiomatic manner on several platforms.
Dart is an approachable, portable, and productive language for high-quality apps on any platform.
Open Health Stack provides building blocks for creating next-gen healthcare apps.
The Go programming language is an open source project to make programmers more productive.