Notes on small caches

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.

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

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

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.

The team I learned the most from didn't have great tools. They had a great habit of reading each other's pull requests in full, including the parts that weren't theirs.