Kalshi predicts the World Cup

Using Kalshi market data to forecast the full world cup bracket.

Fancy Capital Gains Calculator

Model the after-tax value of stock holdings.

Small data

Ultralight point-and-click data exploration. Filter, join, plot, etc. on small datasets in your browser.

Itinerary

Let AI put your travel itinerary on a map. Can help with planning or just telling people what you're up to.

Potion Paper

Notebook app with easy and simple inline LLM features.