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System Design Fundamentals

The patterns and practices that hold up across the years, distilled from real-world reasoning.

A curated path through articles that build up a working understanding of distributed systems, scaling, and architecture decisions that matter in practice.

3 articles
  1. STEP 1·Feb 2015

    Configuration Drift and Why Manual Setup Keeps Failing

    Everything works perfectly until you try to recreate it somewhere else. That is when the problems start. I have been noticing a pattern and it has a name: configuration drift.

  2. STEP 2·Mar 2015

    Docker Changed Everything and Most People Missed It

    In early 2015 I watched a colleague containerise an app in twenty minutes that had taken three days to set up on a new server. That was the moment I understood what Docker actually was.

  3. STEP 3·Nov 2025

    Designing Resilient Distributed Systems: Lessons from Failures

    I have been involved in enough production incidents to have strong opinions about what makes distributed systems resilient. The patterns are not complicated. The discipline to apply them consistently is.

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