Caches solve a problem and create three new ones: invalidation, observability, and the slow drift between what the cache…

Latency budgets work better than latency targets. Targets are aspirational. Budgets force you to delete features when yo…

I write smaller commits than I used to. The commits are uglier in isolation and much easier to read in sequence.…

I keep a small log of decisions in a text file. Not architectural — just small ones. "Picked X over Y because Z." Future…

Every time I revisit a project after six months, I find at least one place where past-me wrote a comment that present-me…