Architecture Weekly

Parse, Don't Guess

Last time, I shared with you how sneaky I was on transaction handling.. Today, the opposite: I’ll tell you how I fixed the issue when I tried to be too…

Mar 2 • Oskar Dudycz

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February 2026

How I cheated on transactions

Or how to make tradeoffs based on my Cloudflare D1 support

Feb 16 • Oskar Dudycz

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January 2026

On rebuilding read models, Dead-Letter Queues and Why Letting Go is Sometimes the Answer

In the last article, I explained how to rebuild Event-Driven Read Models in a safe and resilient way. I asked readers to let me know if they find any…

Jan 19 • Oskar Dudycz

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Rebuilding Event-Driven Read Models in a safe and resilient way

And what distributed locking, PostgreSQL Advisory Locks have to do with that

Jan 5 • Oskar Dudycz

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December 2025

Architecture Weekly is 5 years old! 🎉

Yup, I just realised that it happened! Let's do a small celebration and recap how I got here!

Dec 29, 2025 • Oskar Dudycz

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Multi-tenancy and dynamic messaging workload distribution

This time, I discussed how to setup and scale message processing when you have multi-tenant environment or other dynamic setup. You'll see…

Dec 15, 2025 • Oskar Dudycz

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Checkpointing the message processing

I realised that checkpointing our (message) processing is similar to using cheat codes in Super Frog and similar old games.We need to recover and use…

Dec 8, 2025 • Oskar Dudycz

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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, 2025 • 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, 2025 • Oskar Dudycz

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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, 2025 • Oskar Dudycz

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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, 2025 • Oskar Dudycz

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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, 2025 • Oskar Dudycz

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