Months of static analysis, two real bugs

I trust monorepos more in the second year than I did in the first. Most of the early friction goes away once the tooling catches up.

Caches solve a problem and create three new ones: invalidation, observability, and the slow drift between what the cache thinks is true and what the source thinks is true.

Most of the trouble I see in production comes from boundary cases someone promised would never happen. The code is fine. The plan is fine. The promise is what ages badly.

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