iiinova — where your digital self keeps evolving

Lutz Hühnken @huehnken.de · 02/10/2026

I opened Haskell for Mac haskellformac.com after a long time today. It hasn't been updated in 5 yrs, Intel/Rosetta only. The website has no SSL, the support website support.hfm.io doesn't exist. So it's probably abandoned. It's still in the App Store, though.

haskellformac.com

Haskell for Mac IDE — Learn Functional Programming with Haskell

Haskell for Mac is an easy-to-use innovative programming environment for the programming language Haskell. It is ideal to learn Haskell and functional programming. It is also great to prototype and ex...

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Lutz Hühnken @huehnken.de · 26/09/2026

Feedback is hard. Especially giving it (receiving it can be, too). There's no lack of articles and guides on this, so your feedback fatigue might expand to even reading about it. But I find this a good, comprehensive overview. martinfowler.com/articles/hea... #Feedback #EngineeringManagement

martinfowler.com

Healthy Feedback

A guide to exchanging criticism or praise in teams

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Reposted by Lutz Hühnken

JavaForumNord @javaforumnord.bsky.social · 03/09/2026

Lutz Hühnken @huehnken.de - Das Kafka-Ökosystem 2026 Auf dem Java Forum Nord 2026: javaforumnord.de/2026/

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Lutz Hühnken @huehnken.de · 03/09/2026

So is orchestration a requirement for cross-domain workflows, or a habit carried over from monoliths? My code.talks talk makes the case for choreography, and for breaking big workflows into micro-workflows, not distributing them. Hamburg, 5 Nov. #EventDrivenArchitecture

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Lutz Hühnken @huehnken.de · 03/09/2026

Which is reasonable, until you look at what it is. A coordinator that sends a request and waits for a reply is doing request-response. Maybe over Kafka, maybe named like events, but still command-driven. You set out for decoupling and brought runtime coupling back.

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Lutz Hühnken @huehnken.de · 03/09/2026

EDA gets recommended for microservices. Then a real business process turns up, and inventory, payment and shipping all have to move together. The usual reach is a workflow engine or the Saga pattern: one coordinator sends commands and waits for replies.

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W-JAX | Community & Konferenzen @jaxkonferenz.bsky.social · 28/08/2026

⚡ Event-driven heißt nicht automatisch resilient. @huehnken.de zeigt auf der W-JAX bewährte #EDA-Patterns, typische Antipatterns und konkrete Dos & Don’ts für robuste, wartbare Systeme. 📍München | 📅 Mittwoch, 4.11. | ⌚ 10:15 Uhr 🔗 f.mtr.cool/bgvd8pxlws #SoftwareArchitecture #jaxcon

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Lutz Hühnken @huehnken.de · 18/08/2026

Nur zur Erinnerung: Den 10% Early Bird Rabatt gibt es nur bis 90 Tage vor der Schulung. Der nächste Termin ist 26./27.11.2026, also um zu sparen - bis Freitag 28.8. buchen - den Code "EARLY_BIRD" angeben.

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Lutz Hühnken @huehnken.de · 13/08/2026

Added to my Awesome EDA list: Kim Clark on "The Resurgence of Event Driven Architecture". Good historical context, and clear that async transport gives you no decoupling if used for request/response. codeberg.org/lutzh/awesom... #EDA #SoftwareArchitecture

codeberg.org

awesome-event-driven-architecture

A curated list of resources on event-driven architecture.

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Lutz Hühnken @huehnken.de · 05/08/2026

„Der zweite Teil ging schön in die Untiefen der zu erwartenden Probleme." „Viel Platz für Fragen und Diskussionen - die du super begleiten konntest mit deiner Erfahrung."

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Lutz Hühnken @huehnken.de · 05/08/2026

O-Töne: „Sehr guter Überblick über EDA mit vielen Zusammenhängen und wichtigen Vertiefungen." „Gute Abwechslung von Übungen und Theorie." „Klasse, hat Spaß gemacht"

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Lutz Hühnken @huehnken.de · 05/08/2026

(🇩🇪) Ein bisschen Feedback zu meinem EDA-Training. Weil positives Feedback motiviert und weil ich ein bisschen Werbung machen will 🙂 Nächster Termin: 26./27.11. in Hamburg. Thread 🧵👇

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Lutz Hühnken @huehnken.de · 30/07/2026

For my 2-day Event-Driven Architecture training I'm now partnering with training provider oose. So I can now offer public trainings that individual devs & architects can join. In person, in Hamburg, Germany. www.oose.de/seminar/even... #eda #eventdrivenarchitecture #training #softwarearchitecture

oose.de

Event-Driven Architecture

Entwirf eventgetriebene Systeme mit Sicherheit. Lerne Architektur, Event Design und bewährte Muster in einem praxisnahen Training.

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Reposted by Lutz Hühnken

Software Architecture Summit @softwarearchsummit.bsky.social · 23/07/2026

Kafka allein macht keine Event-driven Architecture. Warum lose Kopplung mit Architektur beginnt & nicht mit einem Message Broker, erfährst du im kostenlosen Whitepaper. 📥Kostenlos herunterladen. software-architecture-summit.de/dow…

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Lutz Hühnken @huehnken.de · 16/07/2026

New talk: the Kafka ecosystem in 2026. Drop-in alternatives speaking the Kafka protocol (Redpanda, WarpStream, AutoMQ, Bufstream), what diskless architectures actually change, smarter clients, proxies and gateways, plus KIP-932 and KIP-1150. Kafka is a protocol now, not just a broker. #kafka #eda

Banner ad promoting a talk about Kafka at Java Forum Nord 2026 in Hannover.

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Lutz Hühnken @huehnken.de · 10/07/2026

I learned a lot from the experience and took many notes for an improved 1-day format in the future (but still that'll just be for conferences, the standard package will remain the 2-day training) (see www.huehnken.de/training.html)

huehnken.de

Event-Driven Architecture Training - Lutz Hühnken Consulting

A hands-on 2-day in-person course for software teams

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Lutz Hühnken @huehnken.de · 10/07/2026

I gave a one-day workshop on event-driven architecture (of course). It's an unusual format (1 full day) and group size (some 30 people) for me and I had to improvise a lot, the conversations I like to do in smaller groups didn't work in that context.

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Lutz Hühnken @huehnken.de · 10/07/2026

The talks are short and in that environment it's a bit hard to get immersed in them. But they are very varied and sometimes there are pearls to be discovered - for example this year I learned about FreeST, a "language for safe concurrency powered by context-free session types". Thanks Veit Heller!

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Lutz Hühnken @huehnken.de · 10/07/2026

It's wrap (for me, anyway) for the @wearedevelopers.bsky.social European Congress this year. The congress is not like other conferences I go to. It's bigger, noisier. Great crowd (massive amount of people, > 10000 or so), young, international, energetic.

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W-JAX | Community & Konferenzen @jaxkonferenz.bsky.social · 07/07/2026

⚡ Event-driven Architecture in der Praxis: Was funktioniert – und was tut später weh? @huehnken.de zeigt auf der W-JAX Patterns & Antipatterns für resiliente, wartbare EDA-Systeme. 📅 04.11. | ⌚ 10:15 🔗 f.mtr.cool/xvdsdhhslb #jaxcon

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Lutz Hühnken @huehnken.de · 01/07/2026

I‘ll be at the WeAreDevelopers World Congress in Berlin next week. Happy to discuss building and evolving engineering organizations, strategic technology leadership, or event-driven architecture. If you’re also there and want to meet up, DM me. #eda #eventdrivenarchitecture #ddd #teamtopologies

The wearedevelopers conference is held from July 8 - 10 in Berlin, Germany

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Lutz Hühnken @huehnken.de · 24/06/2026

If you're actually attending in person, yes, I think that's often the case. They might not be the best ones to watch a video of, though. Then again, maybe it's good to just be in the moment, and not care so much about the recording.

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Lutz Hühnken @huehnken.de · 24/06/2026

Hectic, a bit chaotic, a lot of intelligible questions and discussion. Not great to watch as a recording. But still, if you weren't there, you missed out. A great vibe in the room, good fun. My talk on "Four Programming Languages": tinyurl.com/j5z2my44 #programminglanguages #programming #bobkonf

youtube.com

Four Fascinating Programming Languages You've Probably Never Heard Of - Lutz Hühnken

YouTube video by BOBKonf

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Lutz Hühnken @huehnken.de · 17/06/2026

Some seats are still available for my workshop 👨‍🏫 on Event-Driven Architecture at the WeAreDevelopers world congress in Berlin on July 8. I try to make it fun & interesting, so please tell your friends. 👉 www.wearedevelopers.com/world-congre... #eda #eventdrivenarchitecture #softwarearchitecture

screenshot of a tile advertising a workshop on event-driven architecture

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Lutz Hühnken @huehnken.de · 12/06/2026

Farewell Antwerp. Had amazing three days. Surrounded by so many brilliant minds, it felt almost surreal. Thanks @dddeu.bsky.social for a great conference! #DDDEU

Mexican standoffs (with photos, not guns)

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BOB Konferenz @bobkonf.de · 12/06/2026

Video of @huehnken.de's #BOBkonf2026 talk "Four Fascinating Programming Languages You've Probably Never Heard Of" is now up on our website! bobkonf.de/2026/huehnke...

bobkonf.de

BOB - Four Fascinating Programming Languages You've Probably Never Heard Of

BOB Konferenz, Best of Breed Konferenz für Software-Entwickler und Entscheider in der Softwareentwicklung.

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Lutz Hühnken @huehnken.de · 10/06/2026

10th edition of @dddeu.bsky.social being kicked off by Eric Evans. #DDDEU

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Lutz Hühnken @huehnken.de · 12/05/2026

On DDD Europe I'm going to speak about EDA Patterns and Antipatterns. Come and see if you recognize patterns from your code base. If you don't have a ticket yet, use this link for a discount: ti.to/on3/aardling... #eda #eventdrivenarchitecture #softwarearchitecture #conference #dddeurope

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Lutz Hühnken @huehnken.de · 08/05/2026

Check out the other articles and videos on the list as well, they're all awesome (that's why it's called awesome list 😉) 👉 codeberg.org/lutzh/awesom...

codeberg.org

awesome-event-driven-architecture

A curated list of resources on event-driven architecture.

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Lutz Hühnken @huehnken.de · 30/04/2026

TIL Tangled wants to offer a fediverse approach for code collaboration. blog.tangled.org/federation/ is a good read. My favorite Github alternative so far is codeberg.org, run by a non-profit. (Github's great, but open source shouldn't depend on a single company to this degree). #git #fediverse

blog.tangled.org

we need a federation of forges

git is decentralized, but what of the rest?

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Lutz Hühnken @huehnken.de · 28/04/2026

If Claude Code no longer offers Opus 4.6 in the model selection, but you'd like to use it, for now you can still get it back via config or command line parameter, as in e.g. $ claude --model 'claude-opus-4-6[1m]' Source 👉 ai.georgeliu.com/p/regain-acc... #claudecode #ai

ai.georgeliu.com

Regain Access To Claude Opus 4.6 And Opus 4.5 In Claude Code CLI

Stuck with Opus 4.7 in Claude Code? Get back Opus 4.6 or Opus 4.5 access via /model section

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Lutz Hühnken @huehnken.de · 28/04/2026

Great way of explaining event sourcing: www.youtube.com/watch?v=xPmQ... Fun fact, when I had to come up with an analogy to explain event sourcing about ten years ago in a talk, I also chose football ⚽. #eventsourcing #softwarearchitecture

youtube.com

Event Sourcing Explained using Football

YouTube video by Metaphorically Speaking

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Lutz Hühnken @huehnken.de · 23/04/2026

Yes, better models, better tools, better practices. We sometimes forget how recent the developments are. Claude 2.0 was released Sep 25, Opus 4.5 Nov 25.

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Lutz Hühnken @huehnken.de · 23/04/2026

See metr.org/blog/2026-02... : "we believe it is likely that developers are more sped up from AI tools now — in early 2026 — compared to our estimates from early 2025"

metr.org

We are Changing our Developer Productivity Experiment Design

Our second developer productivity study faces selection effects from wider AI adoption, prompting us to redesign our approach.

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Lutz Hühnken @huehnken.de · 23/04/2026

You seem to be quoting "Measuring the Impact of Early-2025 AI on Experienced Open-Source Developer Productivity". While that certainly is an interesting study, the authors themselves have since written that they think the numbers are probably already outdated.

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Lutz Hühnken @huehnken.de · 17/04/2026

For disambiguation: Docker Sandboxes: docs.docker.com/ai/sandboxes/ Sandcat: github.com/VirtusLab/sa...

docs.docker.com

Docker Sandboxes

Run AI coding agents in isolated environments

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Lutz Hühnken @huehnken.de · 17/04/2026

❓What's your setup? Especially for single-developer projects with your AI buddy 🤖. Team and org setups are interesting too, feel free to share, but right now I just want to let the agent YOLO on my machine safely.

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Lutz Hühnken @huehnken.de · 17/04/2026

☁️ Hosted sandboxes the agent delegates code execution to. There seem to be a lot of players: E2B, Daytona, Modal, OpenSandbox, and more.

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Lutz Hühnken @huehnken.de · 17/04/2026

🔒 Local sandboxes that wrap the agent itself, so you can run Claude Code or Codex in --dangerous / YOLO mode safely. I'm looking at Docker Sandboxes and Sandcat. What are you all using?

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Lutz Hühnken @huehnken.de · 17/04/2026

I want to up my sandbox game 🛠️ and now I'm wondering what everyone is using. #ai #agents #claude

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Lutz Hühnken @huehnken.de · 17/04/2026

I was recently interviewed for WeAreDevelopers. If the AI summary on the page is correct, I'm quite happy with what I said 😃. It's mostly about event-driven microservices. Check it out: 👉 www.wearedevelopers.com/en/videos/18... #eda #eventdrivenarchitecture #softwarearchitecture #podcast

wearedevelopers.com

Lutz Heunkhen - Event-Driven Microservices: Patterns and Practices - Lutz Heunkhen

Are your microservices just a fragile, distributed monolith? Learn how event-driven patterns create true resilience and decoupling.

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Lutz Hühnken @huehnken.de · 16/04/2026

If you think about coming to my class www.wearedevelopers.com/world-congre... with the discount code "WWC26_BUILD" you get the full-day workshop and the conference ticket for < 600 € altogether (only until April 17th) See you in Berlin! #eventdrivenarchitecture #eda #berlin #wearedevelopers

wearedevelopers.com

Event-Driven Microservices: Patterns and Practices for Production-Ready Systems Masterclass at World Congress 2026

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Lutz Hühnken @huehnken.de · 16/04/2026

If you think about coming to my class www.wearedevelopers.com/world-congre... with the discount code "WWC26_BUILD" you get the full-day workshop and the conference ticket for < 600,-€ altogether (until April 17th) See you in Berlin! #eventdrivenarchitecture #eda #berlin #wearedevelopers

wearedevelopers.com

Event-Driven Microservices: Patterns and Practices for Production-Ready Systems Masterclass at World Congress 2026

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