Hello there,

Welcome to VinhMDev.

I’m Vinh, and I build software in Ho Chi Minh City. This blog is where I retell what I learn about technology: why systems tend to fail exactly when traffic peaks, what AI is actually doing inside, or how accidentally owning two servers turns into a whole series. I write so that someone who does not read code every day can still follow along.

• Who it’s for: tech-curious working people — PMs, BAs, testers, students, career switchers, and developers too. Technical terms stay in English, but every unfamiliar one is explained the first time it appears.
• Where the math and code live: inside collapsible “Going deeper” blocks. Open them if you like; skip them and the post still reads end to end.
• What’s here: the Illusion of Control series on how large systems really behave, the Practical K3s series on building a cluster from scratch, and a few standalone posts about tools I built or science stories odd enough to retell.

(Note: some posts here are edited with the assistance of AI.)

Thanks for stopping by!