A guided tour of everything that happens behind a single command: how uv prepares the environment, how the FastAPI CLI finds your app, why Uvicorn is required, what ASGI is, and how auto-reload actually works.
Welcome to William Oliveira
Some notes about Software Engineering, Web Development, Web Performance, AI Engineering, AI Agents, CyberSec, Hacking, DevOps and other things I find interesting.
Latest notes
AI-assisted programming broke the link between how sophisticated software looks and how well its authors understand it. A practical test for spotting comprehension debt in your own work.
Loop engineering is the new phrase in AI coding circles. Here is what is real, what is exaggerated, and how senior engineers should think about agent loops.
Geremmyas is a CLI harness for installing repeatable AI coding assistant workflows, project rules, skills, guardrails, and a dashboard for tracking specs and tasks.
A Design expert built a full healthcare platform with Cursor in weeks. Impressive. Then I read the code before running a single command, and found 4 critical security vulnerabilities, broken RLS, and a rate limiter that did nothing.