When I published the original series in November 2025, I was happy with where the system landed. It had semantic caching, fallback strategies, distributed tracing, autoscaling, solid production patterns throughout. But as I kept working with it and preparing a talk around the same material, I kept spotting areas where…
We finally got first drop of snow this week in Stockholm. The eather is getting colder and days shorter. That only motivates me to continue writing my third and final post in the RAG series. In part one, we explored the production challenges of RAG systems. In part two, we…
In the first part, we explored the production challenges of RAG systems: latency, reliability, cost, quality, and observability. Now let's get our hands dirty with the actual architecture and implementation. The codebase uses Java 25, Spring Boot 3.5.7, reactive programming with WebFlux, and follows production patterns…
I've been quiet on this blog for a while now. Truth is, I lost my appetite for writing these past months. Between traveling to conferences, delivering talks, and shipping some cool features at work, the keyboard just didn't feel the same. There was also this nagging…
When you think about building machine learning apps, Java is not the first language that comes to mind, probably not even in the top 3 or 5! But Java has proved time and again that it is capable of modernising itself, and even if it's not the first…
Needless to say how important monitoring and observability is, especially in a cloud native, distributed world! No system should got to production without having monitoring tools in place. On the other hand, the devops movement and cloud native era introduced a plethora of tools to run, deploy and monitor our…
If you've been following the news lately in the Java ecosystem (aside from Java 28th anniversary), you should've heard of CRaC. Two big announcements were revealed this week: * Azul announced earlier this week the general availability of and commercial support for Azul Zulu Builds of OpenJDK…
Hello dear reader 👋 Let me set come context some context first before diving into how I set up my home office.  I am a software engineer, a meticulous one you can say! I am sharing my own setup because many friends asked me to do so (and I truly thank…