Alpakka is a Reactive Enterprise Integration library for Java
sbt, the interactive build tool
Distributed Tracing, Metrics and Context Propagation for applications
The Scala 3 compiler, also known as Dotty
A unified analytics engine for large-scale data processing
Scala 2 compiler and standard library
Lift Framework
Property-based testing for Scala
A high velocity web framework
Build concurrent, distributed, and resilient message-driven apps
The pure asynchronous runtime for Scala
Your shiny new Java/Scala build tool
Source code for the X Recommendation Algorithm
Scala language server with rich IDE features
Tiny Scala high-performance, async web framework
Java persistence using JDO, JPA or REST
Apache OpenWhisk is an open source serverless cloud platform
A Thrift parser/generator
Wonderful reusable code from Twitter
Reactive Microservices for the JVM
Yet another configuration framework for JVM languages.
Java-based scientific graphics
Scala libraries for building and consuming RESTful web services