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November 14th, 2025, ISSUE 603

READING

Master ZIO: Functional Effect System

A new course. Learn ZIO from scratch with 10 comprehensive lessons.
ScalaTut
Better explanation of what Business4s is

After a year of confused looks and “wait, is that the same as Workflows4s?”, I finally sat down to explain what Business4s actually is and why it exists. Turns out, “everyone kind of gets it” doesn’t really work.
Voytek Pituła (@Krever01)
ClickHouse with PlayFramework, Slick, and Evolutions

I wanted to show you how to add another database in PlayFramework that uses Slick and Evolutions. That database is ClickHouse, which also requires a little bit of special handling. In the end, it works out quite cleanly. I'll later integrate it into PlayFast, an opinionated production-ready PlayFramework template that makes you productive.
Tanin Nanakorn

RELEASES

Scala 3.7.4

Bump Scala CLI to v1.9.1, Make coverage more similar to the one in Scala 2, plus fixes and updates to capture checking, explicit nulls, exports, implicits, linting, and more!
Scala contributors
Lohika 0.10.0

Lohika is a proof generator for entailments and tautologies in first-order logic. Proofs are now presented at a higher-level, and there many other improvments in 0.10.0.
Melvic Ybanez
scaladex-mcp

Sometimes LLM would suggest obsoleted library when I order them to write some code. This MCP server can provide appropriate version info about specific library.
Windymelt (@windymelt)
toon4s

LLMs love JSON. Your wallet doesn’t. Most libraries add noise, hide bugs, or make Scala behave like Java on a bad day. toon4s tries to respect both sides: clean for the machines and honest for the engineer.
Vitthal Mirji (@whoami_vim)

EVENTS

Designing Simpler Scala Build Tools with Object-Oriented Programming, Nov 17th, Boston, USA

This talk will explore why build tooling is fundamentally such a difficult domain to work in, and how common concepts from object-oriented programming have the potential to simplify the build tool experience. We will end with a demonstration of the Mill build tool that makes use of these ideas, proving out the idea that Scala build tooling has the potential to be much faster, safer, and easier than it is today.
Boston Area Scala Enthusiasts





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    Master ZIO: Functional Effect System. Better explanation of what Business4s is. ClickHouse with PlayFramework, Slick, and Evolutions.


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  12. Scala Times Issue #592

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  25. Scala Times Issue #579

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