Reactive Extensions for the JVM
Design Patterns implemented in Swift
c++/java library for thread support and other useful stuff
WebSocket & WAMP in Java for Android and Java 8
Android runtime permissions powered by RxJava2
Vanilla js Libraries
All Gang of Four Design Patterns written in Unity C#
Multilock, Collections, Controllers, Delegates, Generators, Streams
Examples of some of the most common usages of RxJava 2 and Retrofit
Library for android, simplifies communication between services
A simple, non-blocking, NIO-based, TCP socket API for Java