The Late Margin

Latest posts

Incremental adoption of types

Performance optimization is a tempting distraction. Every line of code that exists to optimize one specific case is a line that must be maintained and understood forever.

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What makes code readable

Distributed systems fail in ways that are hard to predict. After years of debugging production incidents, certain patterns keep recurring. This post explores a few.

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From the archive

The tools we reach for shape our thinking. I've spent the last decade in terminals and shells, and it's changed how I approach problem-solving in subtle ways.

About this site

These are my notes on building reliable, readable, maintainable systems. Interested in clarity over cleverness.

Thoughts on systems. Updated monthly.

Elsewhere

Occasional writing on technical topics. Past essays here.