Challenges

Featured Challenge:
#188 — Voice Chatbot

In this coding challenge, I build a conversational voice chatbot entirely in the browser with p5.js. I combine three pieces: speech-to-text with OpenAI's Whisper model, text-to-speech with Kokoro TTS, and a "brain" for the bot. I also explore the transformers.js pipeline API and the Web Audio API. For the bot's brain, I start with a simple ELIZA-style therapist, then incorporate a RiveScript number-guessing game, and finally a local LLM.

apr 27, 2026

Voice Chatbot

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vectors

This project is a collaboration with Grady Hillhouse at the Practical Engineering YouTube channel. This is my attempt to code a simulation of Horizontal Directional Drilling, laparoscopic surgery for the earth!

Horizontal Directional Drilling

In this coding challenge, I simulate a "random walk" with vectors in p5.js, varying the distance of each step size. This is known as a "Lévy Flight" (named after french mathematician Paul Lévy.)

Random Walker with Vectors and Lévy Flight

In this coding challenge, I code a p5.js version of the Snake Game.

The Snake Game