What's new in Sandcat - docker/devcontainer setup for securely running AI agents dangerously? Quite a lot! * OOTB Codex support, next to Claude and Cursor * install/update script * rtk by default * shared JVM dependency volume by default

GitHub - VirtusLab/sandcat: A Docker & dev container setup for securely running AI agents in `--dangerous` mode. All container traffic is routed through a transparent mitmproxy, enforcing network acce...

A Docker & dev container setup for securely running AI agents in `--dangerous` mode. All container traffic is routed through a transparent mitmproxy, enforcing network access rules and injectin...

github.com

Updates in our AI Scala stack: sttp-ai (client for OpenAI, Claude, and other APIs, along with an agent loop): supporting timeouts & retries; Azure OpenAI support chimp (type-safe, boilerplate-less MCP servers and clients): supporting outputSchema in tool definitions

sttp-ai - new features, updated docs: • first-class Gemini support - direct API implementation, with the usual type-safety, plus agent loop integration • refined docs, describing each integration & feature with examples sttp-ai.softwaremill.com

Orca - deterministic, AI-driven development flows - now comes with a shell! Run one of the built-in flows for a deterministic plan-implement-review loop, or create your own flow - by hand or prompting your favourite agent harness.

My latest strategy for reviewing large amounts of AI-produced code: spot-checks. This will work, assuming that you know the language & ecosystem in which the code is produced (I still sometimes do ;) ).

New features in the latest version of Ox: • `abanonOnInterrupt` for operations which aren't interruptible (e.g. Java's stdin) • resource-only scopes (`resourceScope`) • `computeIntensive` for operations which might monopolize a carrier thread github.com/softwaremil...

GitHub - softwaremill/ox: Safe direct-style streaming, concurrency and resiliency for Scala on the JVM

Safe direct-style streaming, concurrency and resiliency for Scala on the JVM - softwaremill/ox

github.com

Orca update: flow scripts are now language-agnostic. Orca will now auto-detect the commands needed to format, lint (compile) and test a project on first use, using a cheap LLM model. These are the written to `.orca/settings.properties`, where you can adjust as needed.

Can cleaning up technical debt be automated? Just as we're automating coding? Yes, at least partially - and the more of your codebase is AI-generated, the more frequently it should be done.

Lots of change in Orca: deterministic, AI-driven development flows! The flows are now restartable - so when there's a mid-flow interruption, e.g. due to an intermittent error, the flow can be continued from the last checkpoint.

Should code reviews still be a separate stage in the software development process? Code reviews used to be heavyweight: they required involving another human, which is an expensive and slow process.

I might be late to the game, but having a dedicated server for running coding agents is a major life improvement. Dedicated server + tmux + some local/remote ssh config (loosely based on @perevillega.com articles) + scoped GH tokens and you have a secure, always-online sandbox.

Just as we have "mechanical sympathy", soon "code sympathy" might become a non-obvious skill for software engineers: deep, intuitive understanding of how code (or a particular language) works. Question is: how far can you get *without* code sympathy?

Sandcat can now read secrets both from 1Passwords and Proton Pass - thanks to Michał Wiącek for the contribution! github.com/VirtusLab/sa...

GitHub - VirtusLab/sandcat: A Docker & dev container setup for securely running AI agents in `--dangerous` mode. All container traffic is routed through a transparent mitmproxy, enforcing network acce...

A Docker & dev container setup for securely running AI agents in `--dangerous` mode. All container traffic is routed through a transparent mitmproxy, enforcing network access rules and injectin...

github.com

An echo from @rustikon.dev: what are you using #Rust for? Tooling / CLIs win with a wide margin, followed by web apps, backend network services & embedded solutions. Evangelism is also strong ;) Does this match your experience? Where do you see most demand for Rust?

By popular demand (and thanks to contributors!), Orca - deterministic, AI-driven development flows - now supports #OpenCode and #Pi coding agents, in addition to #Claude and #Codex github.com/VirtusLab/orca

GitHub - VirtusLab/orca: Deterministic, AI-driven development flows.

Deterministic, AI-driven development flows. Contribute to VirtusLab/orca development by creating an account on GitHub.

github.com

Sandcat vs. Docker Sandboxes (sbx) - a short comparison: warski.org/blog/docker-...

Docker Sandboxes (sbx) vs Sandcat | Adam Warski: programming articles & videos

Since sandboxing agents is recent hobby of mine, I’ve been looking at the new Docker Sandboxes (sbx), and how they compare to Sandcat.

warski.org

Our AI development stack is shaping up nicely! As a base, using any programming language: * Sandcat to securely run agents, without having to answer tedious questions * Orca to create deterministic development flows

If you're in #Vienna, join me today for the #Scala meetup: Ox + #AI demos! First we'll do a tour of Ox 1.0, to see what Ox provides to make production-ready direct-style Scala a reality.

"Direct-Style Concurrency & Resiliency" + "Deterministic, AI-driven dev-flows", Tue, Jun 2, 2026, 6:00 PM | Meetup

Agenda (preliminary) 18:00 doors open 18:20 welcome 18:30 **A Tour of Ox 1.0: Direct-Style Concurrency and Resiliency** 19:30 break 20:00 **Maybe(!): "Orca: Deterministic,

meetup.com

A bunch of updates for sttp-client 4: • Scala Native support for the http4s backend • cookie propagation across redirects using a CookieStorage • three bug fixes, both found & fixed by AI Enjoy :) github.com/softwaremil...

Release v4.0.25 · softwaremill/sttp

What's Changed Carry cookies across redirects via an opt-in CookieStorage (#2671) (#2897) @adamw Select a single supported qop from a comma-separated advertised list (#2898) @adamw Add Scala N...

github.com

Meet Orca: Deterministic, AI-driven development flows. Orca Flow scripts orchestrate coding agents. No need to try to convince the LLM that reviewing code until all review comments are fixed is a good idea - the script will ensure that's the way it will be done.

Already submitted :) See you in Berlin?

The Scala Programming Language@scala-lang.org · 2mo ago

📢 Quick reminder to submit your Scala Days talk and/or workshop proposals by this Sunday, 31 May

As I work on #Scala projects, I'm also continuously updating our direct-style #Scala skill. The agent-generated Scala 3 code is good, but there are some rough edges sometimes. github.com/VirtusLab/sc...

I would say even more - it's the best place to work since 2010 :) All because of our team - thank you!

SoftwareMill@softwaremill.com · 2mo ago

We were officially recognized as a Best Workplace in Poland by Great Place to Work Polska! A massive thank you to our amazing team for making SoftwareMill a place where we can all thrive. 💙 PS. Want to join a certified Great Place to Work? Check out our open roles: softwaremill.com/join-us/

Jakub Cichy is working on creating a truly production-quality #MCP server & client in #Scala. I've already used Chimp to effortlessly expose an MCP server from a Scala application with just a couple lines of code. www.linkedin.com/feed/update/...

MCP client as a new subproject by kubinio123 · Pull Request #138 · softwaremill/chimp | Jakub Cichy

What initially was a POC for building a simple MCP server in Scala is now being reworked into a fully fledged MCP client/server framework with commitment to support full protocol specification. The M...

linkedin.com

Our #Scala Skill is now compatible both with Claude & Codex - with dedicated installation instructions and necessary metadata. github.com/VirtusLab/s...

GitHub - VirtusLab/scala-skill: Claude Code & Codex Scala Skills: generate direct-style applications with use-case driven guides

Claude Code & Codex Scala Skills: generate direct-style applications with use-case driven guides - VirtusLab/scala-skill

github.com

Maybe we should stop pretending that we carefully review AI-generated code. Not all software is equal. Some of it is critical, but the majority is not. What if we separated human-written & AI-generated code entirely?

🚀 Scala Days 2026 Call for Papers is now OPEN! CFP link 👉 cfp.scaladays.org/scala26/cfp Would love to see more community voices on the Scala Days stage ❤️ #Scala #ScalaDays #FunctionalProgramming #JVM #Programming #TechCommunity

Scala Days 2026

Schedule, talks and talk submissions for Scala Days 2026

cfp.scaladays.org

In just two weeks I'll have the pleasure of visiting #Vienna for two meetups. First, #Java on 1st of June, talking about virtual threads and how they relate to reactive streams: www.meetup.com/java-vienna/...

"From Reactive Streams, through Virtual Threads, to Flows" + TBA, Mon, Jun 1, 2026, 6:00 PM | Meetup

Agenda: 18:00 Doors open 18:20 welcome, doors closing.. 18:30 From Reactive Streams, through Virtual Threads, to Flows - Adam Warski 19:30 break 20:00 Talk 2 **From Reacti

meetup.com

sttp-ai update, mainly thanks to Kuba Cichy: * support for structured outputs in the agent loop * support for the built-int Claude web search tool github.com/softwaremill...

GitHub - softwaremill/sttp-ai: Scala Client for AI models

Scala Client for AI models. Contribute to softwaremill/sttp-ai development by creating an account on GitHub.

github.com

The 2026 #Scala survey results are in! Thank you for your participation :) Explore the raw data: scalasurvey2026.virtuslab.com/ And dive into our commentary: virtuslab.com/blog/scala/...

Our impressions from the Scala Survey 2026

Explore key insights from the Scala Survey 2026, including Scala 3 adoption rates, popular libraries, tooling preferences, and industry trends in the ecosystem.

virtuslab.com