Apache Spark - A unified analytics engine for large-scale data processing

Scala 2 compiler and standard library. Scala 2 bugs at https://github.com/scala/bug; Scala 3 at https://github.com/scala/scala3

CMAK is a tool for managing Apache Kafka clusters

A machine learning package built for humans.

Fault tolerant job scheduler for Mesos which handles dependencies and ISO8601 based schedules

A distributed, fault-tolerant graph database

The Guardian’s image management system

ScalaFX simplifies creation of JavaFX-based user interfaces in Scala

An embedded Insane-specific Language for Scala implementing the BASIC programming language

Boilerplate for creating reactive TCP clients / servers on Akka Streams