I am very happy to announce that will be speaking at Scala.io in Paris on 17 October! This will be my first conference talk since 2019, and I'm going to try to make it the best ever! I will introduce soundness.dev to the world: a tour de force of all the wonderful things you can do with Scala 3. I will show you an exciting, optimistic and realistic future for Scala. I will show you how to build CLI and web applications with code that's as easier to read than Python or JavaScript, but just as safe as Haskell. Thank you to the conference team for giving me this opportunity. Scala.io has a special place in my heart: it's always been a delightful, independent and friendly event, and I'm excited to be coming back to Paris! If you want to see the pinnacle of coding elegance, then please come along!

We've released ATC, a new open-source coding agent based on Tacit. It uses tracked capabilities to control what agents can do, and works with Claude and Codex subscriptions as well as API providers. Funded by the Swiss Cyber-Defence Campus. Enjoy! github.com/lampepfl/atc

It has been a while. I'm happy to present the secure programming language Jo I've been working on: jo-lang.org I believe we can solve the sandboxing problem better with compile-time sandboxing: fine-grained permissions at application-level instead of system-level.

Chimney 2.0.0-RC1 just dropped, with the final improvements and targeting 3.9.0 - if no serious issues are found it will be promoted to 2.0.0! github.com/scalalandio/chimn…

After 6+ years at Devsisters, I’m ready for my next challenge. I’m a hands-on backend architect with 15+ years of experience designing and building large-scale backend systems, distributed architectures, and high-concurrency live-service game platforms. I’m also a library author and maintainer in the Scala open-source ecosystem, where I’ve created projects including Caliban, Shardcake, and Proteus. I’d love to continue working primarily with Scala in my next role. I’m looking for: - Location: Remote worldwide or hybrid/onsite in South Korea - Focus: Backend architecture, distributed systems, and lead/principal engineering roles If you think my experience could be a good fit for your team, feel free to send me a DM. If you know someone hiring, a share or repost would be hugely appreciated!

Save the date! Scala Summit 2026 is coming to San Francisco Bay Area in October 2026 after #ScalaDays 2026.scalasummit.com #SFScala #BayAreaScala #scala

New Chimney(s) dropped: 1.x line supporting 2.12/2.13/3.3: github.com/scalalandio/chimn… and 2.0.0-M4 supporting 2.13/3.8 freshly migrated to Hearth: github.com/scalalandio/chimn…

What dependent types does Scala 3 support? This article covers them all plus adds real-world use cases like codecs and database schemas 👇 blog.rhetoricalmusings.com/p…

I recently joined amilabs.xyz/ and we're looking for software engineers to build a AI infra team on-site here in Singapore If you're in Singapore tired of big-tech satellite offices or boring CRUD apps, and want to work on cutting edge AI infra, please reach out!

Today I released Sage, a fast and modern Redis/Valkey client library in Scala 3, with support for ZIO, Cats Effect, Kyo and Ox. It is a RESP3 protocol-native implementation, designed with advanced use cases in mind (pipelining, cluster, caching, etc). ghostdogpr.github.io/sage/

Proteus 0.5.0 comes with a new gRPC backend, for Kyo! Release notes: github.com/ghostdogpr/proteu…

#Scala folks, in Italy 🇮🇹 we're approaching the Republic Day, and a new #YAES version is here to celebrate! 🎉 The focus was on testing YAES applications, so we introduced some utilities to deal with effects in tests (mainly for @scalatest). Check it out! github.com/rcardin/yaes/rele… cc @ScalaTimes cc @petr_zapletal

Very happy that our work on securing agents with tracked capabilities got best paper award at #cais2026! caisconf.org/program/2026/pa…

Following up on recent posts about Kyo... Here is a great talk by Jonathan Winandy, aka @ahoy_jon, from @scalarconf 2026. Really recommend checking this out if you don't know how special Kyo is! piped.video/SOHbEo7UH28

Is it possible to develop complex GPU pipelines in Scala? 🧠 Spoiler alert, it is! A very well made presentation on Cyfra from @scalarconf 2026. Worth watching even if you know nothing about GPU computations (like me 😀). Btw, it almost matches C++ llama performance! 👇

Scala Native v0.5.12 is now available, bringing significant stability updates and bleeding edge concurrency features to the ecosystem. 🚀

This is a heavy story about a brilliant Scala developer who put his life into his work. 💔 After many health and personal problems, he open-sourced his project for everyone. Let's help him find a new job or support his work! 🙏 #scala gist.github.com/japgolly/538…

How can we ensure critical safety properties of AI agents? Like, no API keys leaked, no prompt injection, no data loss? It's a hard question which will require fundamentally rethinking the way we build modular software. We have an answer in our paper "Tracking Capabilities for Safer Agents" arxiv.org/abs/2603.00991, which I will present at the CAIS conference caisconf.org/ next week.

alright folks, I've got a whole month of unconstrained creative time 🙌🏽 brace for a tectonic shift in Scala and AI 🌋💥

Kyo 1.0.0-RC2 is out so why not - refactoring my whole project to use it. Let's see how it goes in the wild ✌️ PS: Will need to introduce workflows4s-kyo :) @Krever01 should be easy with recently added effect polymorphism I guess :) github.com/getkyo/kyo/releas…

A couple of months ago, I had the pleasure of giving a talk at @scalarconf. Now the video 📽️ is available! The talk was about how #Scala, #Kotlin, and #Java use continuations to implement their light version of threads 🧵 Enjoy! piped.video/watch?v=2TA-6Ypl…