App: Interesting-viz

I built a simple visualization app running in your browser that detects facial expressions, hand positions, and gestures and lets you control on-screen graphics.

App: Interesting-viz

Since late 2025, I’ve been building apps. As a product manager, I thought my coding days were a distant memory. But building software is now really, really easy.

You may not have something that you’ve always wanted to build. But if you have a job that’s mostly taking in information and pushing buttons (which is most knowledge work) then learning how to turn a goal into a working app is probably one of the most important things you can do this month.

I’ve built a dozen or so. Some of them use a “lobby” mechanic where players can scan a QR code and join a group game that’s playing on a TV. Others help me organize my life. And one of them experiments with something called Mediapipe, a piece of software that captures hand positions, gestures, and facial expressions.

I’m using Github to store versions of what I’m building. While some of the apps need a database (I’m using Firebase) and a server to run the code (I’m using Vercel), an app that doesn’t actually need to store anything or work with multiple users is completely self-contained. Github offers Github Pages to host files. Which means you can try out this visualization experiment here.