Engineering Notes

Thoughts in code,decisions in production.

I'm Phablo Vilas Boas, a Senior Full Stack Engineer with 9+ years of experience delivering systems to production. Here, the focus is lab work: tests, experiments, prototypes, and practical learning.

Latest entries

3 entries

May 28, 2026 • 7 min read

Lab Reviewer API

This technical lab outlines the creation of a blog reviewing application using FastAPI and Langchain. The application transforms raw Markdown notes into structured blog posts, extracts and reviews code examples, translates content into Brazilian Portuguese, and generates PDFs of the output.

lab-reviewerfastapilangchainmarkdowncode-examplestranslationpdf-generation

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May 08, 2026 • 4 min read

Refactoring Your Node.js API: Why Your Routes Should Not Be Controllers

Learn how to refactor your Node.js API by separating routes from controllers to enhance maintainability and readability.

Node.jsAPIRefactoringBest Practices

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May 06, 2026 • 1 min read

Hello, world: why I started these labs

After 9+ years building software, I wanted a place to document experiments, trade-offs, and practical lessons from real engineering work.

LabsMeta

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