We wanted to push our docs and infrastructure at Lightspark to see if we could make digital money feel more like physical money. We built native apps around a money file. People are already familiar with files. They know how to pick one up, attach it to something, and send it to someone.

This idea became dotmoney, a working prototype for Mac, iPhone, and the web. It uses Spark wallets and a test version of USDB. Here’s what we built.