Lutz Hühnken

oose.deEvent-Driven ArchitectureEntwirf eventgetriebene Systeme mit Sicherheit. Lerne Architektur, Event Design und bewährte Muster in einem praxisnahen Training.

30 July

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

nkg.wd103.myworkdayjobs.comSenior Architect (f/m/d) Azure Platform & IntegrationWe are Neumann Kaffee Gruppe. And we love coffee. For us at Neumann Kaffee Gruppe (NKG), everything revolves around coffee. As a globally active green coffee service group, our more than 3,300 employe...

A customer of mine is looking to employ a senior architect. Systems integration, enterprise architecture, shaping the integration strategy for a diverse and distributed IT landscape. 👉 nkg.wd103.myworkdayjobs.com/en-US/nkg/jo... #EnterpriseArchitecture #SystemsIntegration #Hiring

IT Spektrum ist eine gute Sache (sehr von mir geschätzte, kompetente Kollegen tragen mit ihren Artikeln dazu bei), aber zu behaupten, jedes Wort sei von Experten geprüft und dann Architektur falsch zu schreiben, ist auch ein bisschen lustig 😃.

Check out the code.talks conference on November 4./5. Great location, impressive speaker list, huge party in the evening of the first day, and I'll be there, too! With the code CT50-FINALCALL, you'll get 50% off the ticket price 🎫. #eda #eventdrivenarchitecture #softwarearchitecture #conference

I'll be speaking about workflows (or long-running processes) and options to deal with them. Especially if you're interested in event-driven architecture: We'll explore how to implement them in an event-driven way, and how that compares to using orchestration / a durable execution engine.

codetalks.comcode.talks 2026 – The Conference for Developer Teams and CTOsBreak your silos and get in the loop about whats happening outside your domain. Join 3,500+ developers and CTOs in Hamburg on November 4 & 5, 2026. 100+ curated sessions, top speakers and our special ...

Tickets are available on codetalks.com

haskellformac.comHaskell for Mac IDE — Learn Functional Programming with HaskellHaskell 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...

Update: I heard from the author, and yes, it is in fact no longer maintained. The good news, though: There'll be a successor. And it's on Bluesky: bsky.app/profile/code...

bsky.appbsky.app

Lutz Hühnken@huehnken.de

Anyone still using Haskell for Mac, or know if it's maintained? And what do you use to play around with Haskell on a Mac these days? #Haskell #FunctionalProgramming #macOS

Saga Pattern, Transactional Outbox, Clickbait Events ... In Event-Driven Architecture gibt's viele Patterns & Anti-Patterns. Nächsten Dienstag bei oose teile ich 4–5 spannende Cases. Anmelden & weitersagen! 👇 www.meetup.com/de-de/oose-e... #EDA #SoftwareArchitecture

Am 26./27.11. gebe ich in Hamburg mein Training zu Event-Driven Architecture, bewusst vor Ort: zwei Tage raus aus dem Projektalltag und Zeit für die Grundlagen. Outbox, Idempotenz, Fehlerbehandlung, Prozesse über viele Services. 🧵

Dazu Übungen in der Gruppe und Austausch mit Leuten aus anderen Teams, der im selben Raum besser funktioniert als im Videocall. Infos und Anmeldung: www.oose.de/seminar/even... Teilen ist sehr willkommen! #EventDrivenArchitecture #EDA

Anyone still using Haskell for Mac, or know if it's maintained? And what do you use to play around with Haskell on a Mac these days? #Haskell #FunctionalProgramming #macOS

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.

martinfowler.comHealthy FeedbackA guide to exchanging criticism or praise in teams

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

Lutz Hühnken reposted

JavaForumNord

@javaforumnord.bsky.social

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

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.

W-JAX | Community & Konferenzen

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

Lutz Hühnken reposted

@jaxkonferenz.bsky.social

28 Aug

⚡ 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 🔗 https://f.mtr.cool/bgvd8pxlws #SoftwareArchitecture #jaxcon

18 Aug

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.

Lutz Hühnken@huehnken.de

(🇩🇪) 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 🧵👇

x.comWeAreDevelopers (@WeAreDevs) on XLutz Hühnken says that it can be irritating hearing developers refer to event-driven microservices simply because they use Kafka, when it's a little more nuanced than that. What annoys you in the wor...

14 Aug

If you're still on Twitter, please like/retweet this: x.com/WeAreDevs/st...

codeberg.orgawesome-event-driven-architectureA curated list of resources on event-driven architecture.

13 Aug

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

(🇩🇪) 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 🧵👇

„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."

oose.deEvent-Driven ArchitectureEntwirf eventgetriebene Systeme mit Sicherheit. Lerne Architektur, Event Design und bewährte Muster in einem praxisnahen Training.

Infos & Buchung: www.oose.de/seminar/even... Mit Code EARLY_BIRD 10% Rabatt (nächste 3 Wochen). Nichts für euch? Teilt es gern weiter 🙏 #eda #softwarearchitecture

(🇩🇪) 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 🧵👇

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

software-architecture-summit.deEvent-driven Architecture in Action – Whitepaper kostenlos herunterladenLose Kopplung, resiliente Systeme, kein verteilter Monolith. Dieses Whitepaper zeigt, wie Event-driven Architecture in der Praxis funktioniert – von Kafka bis Schema-Evolution. Jetzt kostenlos herunte...

23 July

(🇩🇪) Meine Artikelserie zu Event-Driven Architecture aus dem Java Magazin gibt es jetzt zum Download in einem Stück: 👉 software-architecture-summit.de/downloads/wh... Wenn ihr es lest, lasst mich wissen, wie ihr es findet / was ihr darüber denkt! #eda #eventdrivenarchitecture #softwarearchitecture

Lutz Hühnken reposted

Software Architecture Summit

@softwarearchsummit.bsky.social

23 July

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. https://software-architecture-summit.de/downloads/whitepaper-event-driven-architecture-angemeldet/

16 July

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

javaforumnord.deJava Forum Nord 2026 – Die Community Konferenz der Java User Groups aus dem Norden

16 July

This is the conference I'll be presenting this at: javaforumnord.de/2026/

10 July

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.

10 July

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.

huehnken.deEvent-Driven Architecture Training - Lutz Hühnken ConsultingA hands-on 2-day in-person course for software teams

10 July

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)

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!

Lutz Hühnken reposted

W-JAX | Community & Konferenzen

@jaxkonferenz.bsky.social

7 July

⚡ 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 🔗 https://f.mtr.cool/xvdsdhhslb #jaxcon

1 July

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

youtube.comFour Fascinating Programming Languages You've Probably Never Heard Of - Lutz HühnkenYouTube video by BOBKonf

24 June

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

17 June

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

bobkonf.deBOB - Four Fascinating Programming Languages You've Probably Never Heard OfBOB Konferenz, Best of Breed Konferenz für Software-Entwickler und Entscheider in der Softwareentwicklung.

12 June

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

Lutz Hühnken reposted

BOB Konferenz

@bobkonf.de

12 June

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...

BOB Konferenz@bobkonf.de

We've had lunch and are now energised for more talks and tutorials at #BOBkonf2026! Talks track A continues with @huehnken.de 's talk "Four Fascinating Programming Languages You've Probably Never Heard Of".

10 June

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

techbullion.comEvent-Driven Architecture in US Finance: How an Append-Only Log Quietly Became the System of RecordThe reconciliation team at a US neobank used to spend three of every five business days chasing a single class of bug. A user would tap a card, the authorisation would post, and somewhere between the ...

18 May

Not so sure about this publication, but the story that most of US finance uses some sort of Event-Driven Architecture or Event Sourcing makes sense to me. It's a short read, check it out 👉 techbullion.com/event-driven... #eda #eventdrivenarchitecture

12 May

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

blogit.michelin.ioMoving from orchestration to choregraphy - Part 1Over the last decade, Michelin went from a big mainframe monolith to a choreography of micro services streaming business events to support its core business processes: the distribution of tires from o...

8 May

Read the latest addition to the "Awesome Event-Driven Architecture" list: Michelin's journey from BPM orchestration to event-driven choreography. 👉 blogit.michelin.io/choregraphy-... #eventdrivenarchitecture #eda #softwarearchitecture

codeberg.orgawesome-event-driven-architectureA curated list of resources on event-driven architecture.

8 May

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...

blog.tangled.orgwe need a federation of forgesgit is decentralized, but what of the rest?

30 Apr

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

ai.georgeliu.comRegain Access To Claude Opus 4.6 And Opus 4.5 In Claude Code CLIStuck with Opus 4.7 in Claude Code? Get back Opus 4.6 or Opus 4.5 access via /model section

28 Apr

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