Hey, I’m Luiz Kowalski — a software engineer who spends most of his days in Ruby and Rails, with a soft spot for the infrastructure that keeps things running: Kamal, Docker, Kubernetes, and whatever else the job needs.

This is my corner of the internet. I started it back in September 2016 as a place to write down the things I learn, mostly so future-me can find them again. Expect posts about Rails internals, refactoring legacy code, deployment, and the occasional detour into whatever’s caught my attention.

No newsletter, no paywall, no algorithm — just writing. If something here helps you out, that’s more than enough.

You can find my code on GitHub, or reach me by email if you want to say hi.