Architecture Weekly

Consumers, projectors, reactors and all that messaging jazz in Emmett

Let me show you today how I designed messaging abstractions in Emmett, and why I split them into Consumers and Processors. Why I added abstractions like…

Dec 1 • 

Oskar Dudycz

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November 2025

Requeuing Roulette in Event-Driven Architecture and Messaging

I’m always saying that there’s a thin line between good and bad practice, and this thin line is named “Context”. That’s also true for the (anti-)pattern…

Nov 17 • 

Oskar Dudycz

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3

Handling Events Coming in an Unknown Order

In the last article we discussed on the scenario where you know what events you should receive, just not the order. But what if you don't know that…

Nov 3 • 

Oskar Dudycz

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3

October 2025

Dealing with Race Conditions in Event-Driven Architecture with Read Models

My events came out of order! What should I do? Are you familiar with the term "phantom record" and its benefits? No? Let me explain it to you today…

Oct 20 • 

Oskar Dudycz

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8

On Messaging and Distributed Systems with Ian Cooper

Why do we still need to learn messaging? Why isn’t it a commodity yet? How to shape boundaries, and how data on the insight, and data on the outside can…

Oct 13 • 

Oskar Dudycz

6

New Recording on Event modelling anti-patterns from DDDEU

Have you heard about Passive Aggressive Events or CRUD sourcing? Or maybe about the Clickbait event?If you don't, check the recording of my talk, as…

Oct 6 • 

Oskar Dudycz

11

1

September 2025

Sneaky Code Bites Back

I was adding SQLite support to Pongo when I realised that I'm talking to myself, and what I heard was insane. I was trying to understand and recap what…

Sep 22 • 

Oskar Dudycz

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2

PostgreSQL partitioning, logical replication and other Q&A about PostgreSQL Superpowers

After getting tone of questions on the last week's webinar, I did Q&A on PostgreSQL superpowers! Check to learn more on PostgreSQL partitioning, logical…

Sep 15 • 

Oskar Dudycz

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4

Just use SQL they say... Or how accidental complexity piles on

“Just use SQL”, they say. “No need for ORMs”, they add. And they may be right, but… Let's look on how this can lead to accidental complexity piling on…

Sep 8 • 

Oskar Dudycz

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8

August 2025

My thoughts on Vertical Slices, CQRS, Semantic Diffusion and other fancy words

Vertical Slices in software architecture are pictured right now as the best thing since sliced bread. I won’t try to hide that, like it. I've written…

Aug 25 • 

Oskar Dudycz

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1

Compilers Aren't Just for Programming Languages

...but also for building Adaptive Streaming Pipelines. I wrote today on how building event-driven pipeline lead me to writing my own compiler. Oh well…

Aug 18 • 

Oskar Dudycz

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2

1

Requiem for a 10x Engineer Dream

People claim they get 10x productivity boosts with AI coding tools. After my recent experiments with Claude Code, I'm starting to think we're not using…

Aug 11 • 

Oskar Dudycz

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