This is a personal notebook of working write-ups on backend engineering, systems internals, and the parts of modern web development that I keep forgetting and have to look up again.

Posts are written when I have something concrete to say — a debugging session that taught me something, a benchmark with a surprising result, or a feature I had to build from scratch and want to remember next time.

If anything you read here turns out to be wrong, please tell me. I’d rather correct it than leave bad information online.