This week in #Scala (May 5, 2025)

Welcome to the new edition of #ThisWeekInScala!

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

New Content

• API-First Development in Scala

• Composing Independent Instruction Sets with Free Monads in Scala 3

• Scala 3: The Evolution of a Macro

• Unison, from a Scala perspective

• 2 years of Rust after 10 years of Scala - the good, the bad and … not so ugly

• Tagless Final for Humans

• Better Scala builds with the Mill build tool

• Automating template management process with Scala 3 and Iron

• Scala Sampler for Functional Soundscapes

• Programming a Language

• Random Scala Tip #624: The Pitfalls of Option Blindness

Events

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

• The CfP for Scala Days 2025 is now open

• Announcing next Scala Meetup in Hamburg (Germany) on June 2nd

• Scala Stockholm Meetup @ Truecaller on May 15

• J On the Beach, May 14th - 16th, Malaga, Spain

• CFP for Lambda Days, June 12th-13th 2025, Krakow, Poland

Releases

• Release v1.0.0-RC19 · zio/zio-dynamodb

• Announcing Scala.js 1.19.0

Learning Materials

• Online Courses (MOOCs) from The Scala Center

• 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)