Articles about technology, programming, and more
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A deep dive into Satoshi's Bitcoin whitepaper — what makes it revolutionary, the technical innovations I found most compelling, and my personal journey reading the paper that changed finance.
Why GraphQL changed how I build APIs — strong typing, client-controlled queries, single endpoint architecture, and the developer experience that makes REST feel outdated.
Why Vue became my favorite framework after years of Angular and React — a deep dive into progressive design, reactivity, and what makes Vue special.
From RDDs to real-time streaming — how I built hands-on notebooks, a Docker cluster, and a full presentation to teach Apache Spark as my Big Data course final project.
The story of diving deep into Webpack 4 through hands-on exercises — from basic loaders and CSS preprocessors to code splitting, DLL optimization, React integration, and even backend bundling. The learning journey that turned a mysterious black box into my go-to build tool.
Why Go won me over — my Pereira Tech Talks session on Go's simplicity, built-in concurrency, and how it solves real problems with less ceremony.
From Bitcoin's origins to industrial revolution — exploring how blockchain technology is reshaping money, trust, and the future of digital ownership.
University projects from my Logic and Constraint Programming course — from classic puzzles in Prolog to constraint solving in Mozart/Oz, culminating in the Four Color Theorem applied to Colombia's map.
The story of my Data Structures course at university — implementing stacks, queues, trees, graphs, and Dijkstra's algorithm in Java, culminating in an unbeatable Tic-Tac-Toe AI using the Minimax algorithm.
Two university projects from my Object-Oriented Programming course — a Sudoku solver using the Observer pattern and backtracking, and a contact agenda with file persistence, both built with Java Swing.
The story of how Programming 2 introduced me to C, pointers, memory management, and building games with Allegro — the semester where I learned what the computer is actually doing under the hood.
The story of how I learned to program with DrScheme (now DrRacket) at university — from the confusion of prefix notation and recursion to building a mathematical function plotter with derivatives.
Why blockchain is more than cryptocurrency — real-world applications in supply chains, identity, voting, and how decentralized trust changes the rules of digital systems.
Building VR experiences with HTML — my talk at Pereira Tech Talks on A-Frame, Mozilla's framework that brings virtual reality to the web with zero configuration.
What I shared at PyCon Colombia 2018 on how applied mathematics lets us build AI models — linear algebra, neural networks, gradient descent, and computer vision.
An academic experiment comparing sorting algorithm complexity and real execution times across two server configurations.
Connect a static contact form to Google Forms via HTTP POST — no iframe needed. Step-by-step guide with Postman and jQuery Ajax.
Why I moved from REST to GraphQL for microservices — divide and conquer, client-defined queries, and the trade-offs you need to know.
My talk at the first Pereira Tech Talks meetup — exploring Google's TensorFlow, machine learning basics, and why AI was about to change everything.
I gave this talk at Universidad de Caldas — tracing blockchain from the history of money to building decentralized apps with JavaScript.
From Bitcoin's blockchain to Ethereum's smart contracts — demystifying crypto for the Pereira JS community with a live Solidity demo.
I teamed up with Alejandro Rendon to explore IoT — from sensors and controllers to programming robots with JavaScript and Johnny-five.
When SQL tables aren't enough — my introduction to NoSQL databases, MongoDB's document model, and when to choose flexibility over rigid schemas.
My first tech talk ever — building a real-time chat app with Meteor.js from zero to working prototype in minutes, with reactive data and no WebSockets setup.
The story of building a fully functional real-time chat with Meteor.js in a single afternoon — to prove to a room full of developers that it could be done.
The story behind my first web project — a university database course final that became my introduction to PHP, SQLite, and web development.
How building a cargo transport platform with university friends taught me the most valuable entrepreneurial skill: telling a story that makes people believe.