apache/spark

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

scala/scala

Scala 2 compiler and standard library. For bugs, see scala/bug

apache/predictionio

PredictionIO, a machine learning server for developers and ML engineers.

rtyley/bfg-repo-cleaner

Removes large or troublesome blobs like git-filter-branch does, but faster. And written in Scala

playframework/playframework

Play Framework

twitter/finagle

A fault tolerant, protocol-agnostic RPC system

akka/akka

Build highly concurrent, distributed, and resilient message-driven applications on the JVM

gitbucket/gitbucket

A Git platform powered by Scala with easy installation, high extensibility & GitHub API compatibility

apache/kafka

Mirror of Apache Kafka

delta-io/delta

An open-source storage framework that enables building a Lakehouse architecture with compute engines including Spark, PrestoDB, Flink, Trino, and Hive and APIs

lampepfl/dotty

The Scala 3 compiler, also known as Dotty.

typelevel/cats

Lightweight, modular, and extensible library for functional programming.

linkerd/linkerd

Old repo for Linkerd 1.x. See the linkerd2 repo for Linkerd 2.x.

scalaz/scalaz

Principled Functional Programming in Scala

scala-js/scala-js

Scala.js, the Scala to JavaScript compiler

sbt/sbt

sbt, the interactive build tool

scala-native/scala-native

Your favorite language gets closer to bare metal.

gatling/gatling

Modern Load Testing as Code

zio/zio

ZIO — A type-safe, composable library for async and concurrent programming in Scala

scalanlp/breeze

Breeze is a numerical processing library for Scala.