sbt/sbt-assembly

Deploy über-JARs. Restart processes. (port of codahale/assembly-sbt)

apache/kafka

Mirror of Apache Kafka

circe/circe-generic-extras

Configurable generic derivation for Circe

typelevel/spire

Powerful new number types and numeric abstractions for Scala.

typelevel/simulacrum

First class syntax support for type classes in Scala

hseeberger/akka-http-json

Integrate some of the best JSON libs in Scala with Akka HTTP

twitter/finagle

A fault tolerant, protocol-agnostic RPC system

com-lihaoyi/sourcecode

Scala library providing "source" metadata to your program, similar to Python's __name__, C++'s __LINE__ or Ruby's __FILE__.

com-lihaoyi/scalatags

ScalaTags is a small XML/HTML construction library for Scala.

com-lihaoyi/os-lib

OS-Lib is a simple, flexible, high-performance Scala interface to common OS filesystem and subprocess APIs

scodec/scodec

Scala combinator library for working with binary data

alexarchambault/scalacheck-shapeless

Generation of arbitrary case classes / ADTs instances with scalacheck and shapeless

scala/scala-parallel-collections

Parallel collections standard library module for Scala 2.13+

twitter/util

Wonderful reusable code from Twitter

playframework/scalatestplus-play

ScalaTest + Play

tpolecat/doobie

Functional JDBC layer for Scala.

japgolly/scalajs-react

Facebook's React on Scala.JS

scalatest/scalatestplus-mockito

ScalaTest + JMock provides integration support between ScalaTest and Mockito.

circe/circe-yaml

YAML parser for circe using SnakeYAML

typelevel/discipline

Flexible law checking for Scala