RxJava – Reactive Extensions for the JVM – a library for composing asynchronous and event-based programs using observable sequences for the Java VM.

Open-source IoT Platform - Device management, data collection, processing and visualization.

A fast dependency injector for Android and Java.

Socket.IO server implemented on Java. Realtime java framework

✔️ Secure, simple key-value storage for Android

Capillary is a library to simplify the sending of end-to-end encrypted push messages from Java-based application servers to Android clients.

Code snippets used in Cloud Build documentation