If a config file has more than a dozen options, half of them aren't being used. The other half are being used in ways th…

There's a kind of premature optimization that comes from imagining a future team. "What if someone needs to swap this ou…

When a system surprises me, my first instinct used to be to fix the surprise. Now my first instinct is to figure out whi…

Most retry logic I've removed turned out to be hiding a real bug. The retries made the failure invisible, and the bug co…

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