Hi, I'm Michał.

Engineer, writer, investor. Deep dives on the JVM, software design and trading systems in Java.

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14 Oct 2026 Pragmatic DDD: When It Pays Off and When It Doesn't
29 Jul 2026 JVM Memory Fundamentals: The Stack, the Heap and Stack Frames

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4 Nov 2026 JVM: The Silent Revolution
28 Oct 2026 Pragmatic DDD in Practice: Testing, Errors, Migration and Pitfalls
21 Oct 2026 The Four Layers of Pragmatic DDD: Code, Packages and Java 25
7 Oct 2026 Abstract Class vs Interface: The Architecture of Intent
30 Sep 2026 Modern Java Error Handling: Scoped Values, Structured Concurrency and Result
23 Sep 2026 Java Exceptions: How They Work and How to Design Them
16 Sep 2026 Garbage Collection in Containers, and What Comes Next
9 Sep 2026 Reading GC Logs: Metrics, Safepoints and Tuning Profiles