Archive
architecture
The real signals for leaving the modular monolith, the false ones, and a step-by-step extraction with no big bang: facade, remote adapter, events on the broker and the schema leaving last.
architecture
Enforced boundaries solve half the problem. The other half is how modules talk without coupling: when to call, when to publish an event and how not to lose events along the way.
architecture
A module boundary that only exists in a diagram won't survive the first tight deadline. How to make the build break when someone crosses a boundary, in Python, Java and Go.
architecture
Before you think about modules or services, you need to know where the boundaries are. A practical guide using Evans, Vernon and Khononov, applied to a school platform.
architecture
Where the code lives, how many processes you deploy and how coupled the code is are separate decisions. A real project with one codebase, three deployables and boundaries checked in CI.
Learning
What you'll find here: system design, Java/Spring, Go and a log of my study routine.
AI in engineering
I tested Laya, a local classifier, in Portuguese and wired it into Hermes Agent over MCP. The numbers, what went wrong and where it pays off.