Technical Blog

Writing about software architecture, backend systems, and building scalable applications.

Authorization in NestJS: Dynamic Permissions with CASL

December 20, 2025 #architecture #nodejs #nestjs #casl #authorization #permissions

Last year I was working on an application that needed an auth system with role-based access control (RBAC). You know, the typical scenario: you have an app and you want to put it in production, so you need login/register and...

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Concurrency in Node.js: Understanding and Implementing

July 27, 2024

In my latest exploration of Node.js, I delved into how this popular runtime handles concurrency. Building scalable APIs with Node.js has been an enlightening journey, and understanding concurrency is a crucial part of making your applications efficient and responsive.

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Forke my first repo

November 11, 2023

Yesterday I forked my first repo with the intention to contribute to Open Source. Yes, Open Source was always on my list but I’d never took the decision to jump on it. So, someone mentioned and why not? I thought....

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Build API with Bun and Elysia

September 15, 2023

I love go for a walk in the morning and listening some podcasts. And I remember how excited I was listening Ryan Dahl talking about Deno on this podcast by ChangeLog:

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