Scala

The Scala Programming Language
Documentation | Scala Documentation
Scaladoc - Scaladoc for Library Authors - Scala Documentation
Scala Standard Library

Tutorials - Scala Documentation
Guides and Overviews - Scala Documentation
Scala School ❗!important
Effective Scala
Scala Tutorial Through Katas | Technology Conversations
Functional Programming Principles in Scala - École Polytechnique Fédérale de Lausanne | Coursera
Scala Tutorial
First Steps to Scala

A 10-Minute Introduction to Scala – Hacker Noon
10 Reasons to Learn Scala and Functional Programming

Ammonite Scala Scripting
Scalafmt - code formatter for Scala

ScalaTest
Play Framework - Build Modern & Scalable Web Apps with Java and Scala

Akka

Akka Akka replaces Sacla's Actor since 2.10
52-technologies-in-2016/38-akka
52-technologies-in-2016/41-akka-dispatcher
General Concepts • Akka Documentation
Scala - Akka Documentation

spray | REST-HTTP for your Akka-Scala Actors
naaman-spray-bootstrap · GitHub

Programming Throwdown Podcast: Jonas Bonér On Why Akka, the Actor Model, and Reactive Systems | @lightbend
How To Build Stateful, Cloud-Native Services With Akka and Kubernetes | White Paper | @lightbend
How Akka Works: "Akka A To Z", An Illustrated White Paper | @lightbend

`sbt`

sbt - The interactive build tool
sbt Reference Manual — sbt Reference Manual
Building projects with sbt — Scala Native documentation

Simple Command Line Tools with Scala Native

sbt new scala-native/scala-native.g8
sbt nativeLink
./target/scala-2.11/randomizer-out

sbt Reference Manual — Library dependencies
When adding Library dependencies

libraryDependencies += groupID % artifactID % revision
# auto resolves scala version
libraryDependencies += groupID %% artifactID % revision
# auto resolves scala version and target, use this for Scala Native or Scala.js
libraryDependencies += groupID %%% artifactID % revision