@rubenoalvarado
Ruben O. Alvarado
@rubenoalvarado
Senior software engineer, storyteller, and comic book fan.
Mexico CityJoined September 2025
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Ruben O. Alvarado's blogs
Recently published
Developing a Tailored Config Module for NestJS Applications
Feb 16 · 4 min read · Have you ever struggled with more environment variables than actual features? DATABASE_URL, SUPABASE_URL, JWT_SECRET, a couple of flags for local vs production, and maybe some “temporary” variables you promise you’ll clean up later. If you read proce...
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An Easy Recap of Supabase Essentials
Feb 9 · 5 min read · Picture this: you're building your next project, and you know you need authentication, a database, and maybe storage. You could spend days configuring Postgres, setting up auth from scratch, and managing deployment—or you could have it all running in...
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Bootstrapping a NestJS API for Personal Finance
Feb 3 · 3 min read · The majority of NestJS tutorials available online tend to stop at basic CRUD operations or simple TODO list applications. Let's move beyond these beginner examples and build something real and practical that you can actually use in production. What W...
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A Guide to Fibonacci Series and Recursion in Go Language
Jan 27 · 4 min read · The Fibonacci sequence is one of the most common problems you'll solve throughout your software career. Its implementation can be as simple or complex as you want. One of the most frequently used solutions is recursion—a core concept in computer scie...
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