This week in #Scala (Jul 28, 2025)

Welcome to the new edition of #ThisWeekInScala!

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

New Content

• Announcing the Akka Agentic Platform

• Scala Macros - Episode 8 - Turning a Trait Into an HTTP Server

• Scala Macros - Episode 9 - Turning a Trait Into an HTTP Server

• Fish Aquarium Database - ZIO + Quill + PostgreSQL JSONB—A fun, working example of how to use JSONB with Quill in Scala 3 and ZIO. This project demonstrates a complete fish aquarium database with type-safe JSONB operations using modern Scala.

• layoutz—Simple, beautiful CLI output

• PencilMail—Fork of https://github.com/minosiants/pencil with added AWS SES support, various fixes, improved tests, various enhancements, and removal of the Apache Tika dependency.

Events

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

• CFP for DEVJVM, Oct 25th, Barranquilla, Colombia

• 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

• scala-cli 1.8.4

• ox 1.0.0-RC1

• mill 1.0.1

• Kyo 1.0-RC1

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)