Software

Every one of the 169 starting hands in Texas Hold’em, worked out from scratch: how often each one wins, what it is worth against one opponent or eight, how it does against a player who only plays strong hands, and when calling an all-in makes money. The figures come from complete enumeration where that is possible and from simulation with measured error where it is not, and the page says which is which, every time.

A free and fair random name picker disguised as an 8-bit horse race. Enter up to 20 names, choose whether to pick the winner or the last one (1, 2 or 3 people) and watch the ponies race through turbos, stars, mud and dice rolls to the podium. Built with p5.js, the Web Crypto API and live chiptune sound, it runs entirely in your browser.

A retrieval system over four chapters of the PostgreSQL documentation. Both of the bugs that mattered were silent: a parser that returned the right number of chunks and left every one of them empty, and an out-of-scope threshold that confidently answered questions whose answers lived in other chapters. Neither raised an error, and each needed a different kind of test to surface.

Visiones inestables (Unstable Visions) is an artwork by Mónica Páez that uses AI to imagine unstable futures of the Art Museum of the Universidad Nacional de Colombia, from photographs of the museum and texts about the institution. Exhibited at the museum itself in June 2026. I had the privilege of collaborating on it with Juan David García Arteaga.

La traición necesaria (The Necessary Betrayal) is an artwork by Mónica Páez inspired by the adage traduttore, traditore: an AI describes the exhibition space and creates a new image from that description, again and again. Exhibited in March 2026 in an exhibition hall at the Universidad de los Andes. I had the privilege of collaborating on it with Juan David García Arteaga.

A conversational agent for e-commerce built with Ollama, LangChain, and ChromaDB, comparing three open-source LLMs — Qwen3 4B, Llama 3.2 3B, and Phi-4-mini — for product search, order tracking, recommendations, and RAG-powered FAQ. Benchmarks tool-calling accuracy, multi-intent handling, and response time across all three models.

Agent-based simulation of the iterated Prisoner’s Dilemma on adaptive networks. Explores how cooperation emerges through imitation (Fermi Rule), dynamic rewiring, and Pareto wealth across Erdős-Rényi and Barabási-Albert topologies.

A complete beginner’s guide to Markdown syntax with practical examples, including syntax explanations and code examples. Perfect for writers, developers, and anyone looking to format text efficiently.

Sinusoidal signals of the form x(t) = A * sin(wt) are used to generate sounds at a specific frequency, where w = 2 * pi * f. Based on this concept, this project involves the design and implementation of a digital piano capable of generating musical notes.

This is a practical introductory course created for the Digital Technology course at the Universidad Nacional de Colombia, highlighting the potential of Single Board Computers (SBC) such as the Raspberry Pi, where the true power of these devices is achieved through the coding process, which unlocks their full capabilities.