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

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 used to add a layer of abstraction the first time I saw a pattern repeat. Now I wait for the third. The waiting is unc…

The fastest debugging trick I've learned is to write out, in one sentence, what the system is supposed to be doing. Half…