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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1980s

Take a trip back in time and watch me attempt to build a 3D graphics engine in AppleSoft BASIC on a restored Apple II+ computer! Can I render a spinning cube?

AppleSoft BASIC 3D Cube

Take a trip back in time and let's learn all about GR (graphics) and HGR (high resolution graphics) in AppleSoft BASIC on a restored Apple II+ computer! Can we render a fractal tree?

AppleSoft Basic Fractal Tree

Take a trip back in time and let's code the Snake Game in AppleSoft BASIC on a restored Apple II+ computer! GOTO and GOSUB! Line numbers!

AppleSoft Basic Snake Game