Blog

Field notes from the studio

Short essays on reading signals kindly — and accurately — in production.

12 min read

Histograms that actually explain latency

How to present buckets so stakeholders stop asking for “just the average.”

9 min read

Link spans to the clicks people remember — without turning product into a span factory.

7 min read

Local rhythms, timezone traps, and weekend deploy etiquette from Dong-gu.

8 min read

Pretty panels, hidden regressions, and three questions we teach first.