This week in #Scala (Jun 23, 2025)

Welcome to the new edition of #ThisWeekInScala!

This blog keeps you updated with the latest Scala and Reactive programming news.

New Content

• First Make It Correct

• Tanin’s experience migrating a PlayFramework app to Scala 3

• MiniClust: a lightweight multiuser batch computing system written in Scala

• S2D: A simple 2D graphics library for Scala-Native, built on top of SDL2 and OpenGL. S2D provides an easy-to-use API for creating 2D games and graphics applications.

• How Lukas disabled -Xfatal-warnings in IDE (IntelliJ) but kept it in CI

• Suspension: the magic behind composability (or: "The Kyo Monad")

• The Elements of Kyo - Interactively explore the codebase

• Developer Ecosystem Survey 2025

Events

• Announcing Scala Days 2025 (Lausanne, Switzerland, 19–21 August 2025)

• Software Delivery Excellence in the age of AI: A Fireside Chat, June 26th, Online Event

• Scalator: Stream Composition with Kyo & Community Revival!, Wed, Jul 9, 2025, 6:00 PM, Toronto

• DEVJVM: Call for Speakers

• The Scala Workshop 2025, Singapore

Releases

• New jing is out

• yaes 0.4.0

• dotty-cps-async 1.1.2

Learning Materials

• Online Courses (MOOCs) from The Scala Center

• Learn Scala with Alvin Alexander

• Functional Programming in Scala JetBrains course

• Scala 3 Metaprogramming Learning Resources

• The Functional Programming in Scala Course Is Out!

• Functional Declarative Design: A Comprehensive Methodology for Statically-Typed Functional Programming Languages

• Get Programming with Scala by Daniela Sfregola (30% off)

• Play for Scala (30% off)

• Grokking Functional Programming (30% off)

• Functional Programming for Mortals (pay as much as you want)

• Essential Effects by Adam Rosien (20% off)

• Programming in Scala, Fifth Edition

• Functional Event-Driven Architecture: Powered by Scala 3 is now 100% complete

• Zionomicon (code is thisweekinscala)

• Supercharge Scala Future | FP-Tower (50% off)