Hey, I'm Hòa — 4+ years building backend systems that stay calm under load. I'd write everything in Golang if I could.
blog.hovanhoa.net
Notes on software engineering, distributed systems, and lessons from building things.
Visit blog
Three ways a thundering herd shows up in production — retry storms, cache stampedes, and planned traffic spikes — and how the industry actually deals with each one.
What an AI agent actually is once you strip away the hype — a model, a set of tools, and a loop. I build a small tool-calling agent in Go from scratch.
A quiet reflection on a year of change — switching companies, traveling almost every month, and learning to keep going.
How I used k6 to measure and validate response-time improvements after optimizing our product search engine.
A personal reflection on a difficult year of change, self-doubt, learning, and slowly finding direction again.
The sites in the family and the services they run on.
