Effects as Capabilities Capabilities appear to be the hot topic in the Scala community right now. Some love them, some hate them, most don’t really quite seem to understand what they’re about, and since I’ve been studying them a little, I thought I’d share my insights and hopefully not add too much to the confusion. Nicolas Rinaudo (@NicolasRinaudo)

Claude Code, Metals, and NVIM If you use Metals and you use a tool like claude, use Metals as an MCP serer. It will save you some time. Chris Kipp (@ckipp01)

Integrate JobRunr into Play Framework [Update Sep 2025] This blog shows you how you can integrate JobRunr with Play Framework. Tanin Na Nakorn (@tanin)

Chez: A Scala Library for JSON Schemas, OpenAPI Spec generation & building AI Apps While Cask provided a solid foundation, it lacked some key pieces we had needed: JSON Schema validation, and OpenAPI spec generation. Mat Silva (@MatSilva)

Random Scala Tip #534: Adopt an Error Handling Convention for `Future` I'm sure that many of us, in an effort to bring food on the table, are still stuck in the past, using Future. Daniel Beskin

dotty-cps-async 1.1.4 With some improvements and bugfixes. dotty-cps-async contributors

scalasql 0.2.1 Scala ORM to query SQL databases from Scala via concise, type-safe, and familiar case classes and collection operations. Connects to Postgres, MySql, H2, and Sqlite out of the box. Now with support for MSSQL. Li Haoyi (@li_haoyi)

Play 2.9.9 Shipping Java 25 support! Play contributors

Play 3.0.9 Shipping Java 25 support! Play contributors

Scautable One line CSV import and dataframe utilities based on scala's NamedTuple. Simon Parten

layoutz 2.0 Simple, beautiful CLI output. In 0.2.0 you can now snap together Elm-style TUI's in Scala with this tiny DSL for simple, declarative String rendering. Matthieu Court

geminilive4s 0.3.0 Now allows to let Gemini start the conversation, plus manual voice activity. Alexis Hernandez (@alexitcdev)

Announcing Scala.js 1.20.1 This is technically a hotfix patch release for 1.20.0, which was discovered to be severely broken, and was therefore never announced. These release notes therefore present it as a “minor release” compared to 1.19.0. Scala.js contributors (@scala_js)

dynalens 1.1.0 DynaLens (dynamic lens) is a library to allow dynamic editing of a static object. v1.1.0 refactors both the script parser and runtime, and adds many new functions Greg Zoller

ScalaWAW #36 - Scala Plugin for IntelliJ hackathon, Thu, Oct 9, 2025, 6:00 PM | Meetup

LLM4s Dev Hour – Sundays @ 9am London Time Just finished another great hour of mob programming. We’re now doing this every Sunday — 60 minutes of live coding, debugging, and learning together in public. LLM4s

The Scala Workshop, Oct 13th, Singapore The Scala Workshop is the continuation of the Scala Symposium, providing a forum for researchers and practitioners to discuss the design, implementation, and applications of the Scala programming language. Topics include language features, compiler internals, type systems, libraries, tools, and industrial applications. EPFL

Func Prog Conf, Oct 15th, Stockholm, Sweden Func Prog Conf is a half-day conference about functional programming. Don't miss this unique opportunity to learn, network and have a good time! Func Prog Conf

Scala.IO, Oct 17th, Paris, France Scala.IO is a conference for people having interest in the Scala ecosystem or simply being curious about the language, usages. The conference is organized by Scala supporters from the community, and provides a great opportunity to meet with other enthusiasts and practitioners. Scala.io (@ScalaIO_FR)

DEVJVM, Oct 25th, Barranquilla, Colombia A conference uniting Java, Kotlin, and Scala developers. DEVJVM

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