Articles & Stories
Technology, entrepreneurship, personal life, and everything in between
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Yo Me Llamo Héctor Lavoe: Building a Personal Website for a Salsa Artist
Website for a Yo Me Llamo contestant as Héctor Lavoe: audio player, gallery, and a jPlayer Safari fix that took an afternoon over three pixels.
Introduction to Webpack
How Webpack transformed front-end development—my talk on entry points, loaders, plugins, and why developer experience beats configuration complexity.
Building Rocka.co: The Story Behind a Tech Venture Builder Website
How we built Rocka.co—from statue metaphors and parallax to a CSS Design Awards Special Kudos—for the incubator where DailyBot was born.
BSolutions: Managing Multiple Database Engines with Django and Docker
Advanced Databases class project: Django talking to ten SQL and NoSQL engines via Docker—multi-database ops and microservices architecture in practice.
History, Discussion, and Analysis of the Bitcoin Paper by Satoshi Nakamoto
A deep dive into Satoshi's Bitcoin whitepaper—what makes it revolutionary, the technical ideas that stuck with me, and why it changed finance.
Introduction to APIs with GraphQL
Why GraphQL changed how I build APIs: strong typing, client-driven queries, one endpoint, and an experience that makes REST feel outdated.
Introduction to Vue.js
Why Vue became my favorite framework after years of Angular and React — a deep dive into progressive design, reactivity, and what makes Vue special.
Taming Big Data: An Introduction to Apache Spark
From RDDs to streaming: notebooks, a Docker cluster, and a presentation teaching Apache Spark for my university Big Data final project.
Learning Webpack: The Exercises That Changed How I Build for the Web
Hands-on Webpack 4: loaders, preprocessors, code splitting, DLL optimization, React integration, and backend bundling—how practice demystified the bundler.
What is Blockchain and How Is It Radically Transforming the Economy and Industry?
From Bitcoin's origins to industrial revolution — exploring how blockchain technology is reshaping money, trust, and the future of digital ownership.
Declaring the Solution: Logic and Constraint Programming with Prolog and Mozart
Prolog and Mozart/Oz: logic puzzles, constraint solving, and four-coloring Colombia's map—university projects where you describe solutions, not steps.
Data Structures in Java: From Linked Lists to an Unbeatable Tic-Tac-Toe AI
Data structures in Java: stacks, queues, trees, graphs, Dijkstra, and an unbeatable Tic-Tac-Toe bot with Minimax—my university course end to end.
OOP in Action: Building a Sudoku Solver and Contact Agenda with Java Swing
OOP in Java Swing: Sudoku with the Observer pattern and backtracking, plus a file-backed contact agenda—two university projects where patterns met real code.
From Parentheses to Pointers: Learning C and Imperative Programming at University
Programming 2 brought C, pointers, memory management, and Allegro games—the semester I learned what the computer actually does under the hood.
My First Steps in Programming: DrScheme, Recursion, and a Function Plotter
Learning to code with DrScheme (now DrRacket): prefix notation, recursion, and a function plotter with derivatives in my first university course.
Blockchain: The Industrial Revolution of the Internet
Why blockchain goes beyond cryptocurrency: supply chains, identity, voting, and how decentralized trust reshapes modern digital systems.
WebVR with A-Frame
Building VR experiences with HTML — my talk at Pereira Tech Talks on A-Frame, Mozilla's framework bringing virtual reality to the web with zero configuration.
Comparative Analysis of Sorting Algorithms
An academic experiment comparing sorting algorithms—complexity analysis and real execution times across two server configurations.
How to Submit Google Forms via Postman and Ajax
Connect a static contact form to Google Forms via HTTP POST — no iframe needed. Step-by-step guide with Postman and jQuery Ajax.
Introduction to Blockchain and Ethereum
From Bitcoin's blockchain to Ethereum's smart contracts — demystifying crypto for the Pereira JS community with a live Solidity demo.
What is Blockchain and How Will It Radically Transform the Economy?
I gave this talk at Universidad de Caldas — tracing blockchain from the history of money to building decentralized apps with JavaScript.