Seth Fuller

Capsule Memories - Messages to your future

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Capsule Memories lets you seal photos, videos, and notes into a digital time capsule that unlocks on a future date. Capture a moment today and rediscover it later. The app began as an experiment: two Claude Code agents (“Claude” and “Claudius”) were launched in the same empty Flutter project and told to collaborate. In about 20 minutes they designed and built the first version of Capsule Memories together.

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Seth Fuller
Maker
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Hi all! 👋 Capsule Memories started as a small experiment. As a software engineer, I’ve always been hesitant to let AI generate entire applications. Giving up control of thousands of lines of code to a bot felt risky. AI can make simple mistakes, so trusting it to build something real seemed questionable. So I decided to test it. I created an empty Flutter project and launched two Claude Code agents in separate terminals. I named them Claude and Claudius. Each agent knew the other existed in the same directory, and their job was to collaborate, decide what to build, figure out how to communicate, divide the work, and implement the app. About 20 minutes later, they produced the first version of Capsule Memories. The idea they came up with: an app where you seal photos, videos, and notes into a digital time capsule that unlocks on a future date. What surprised me most wasn’t just that the app worked. The agents independently created a communication protocol, coordinated tasks, and built a functioning Flutter app with a modern UI. Afterward, I had one of them add animations and in-app purchases, with only minor tweaks needed. The experiment showed me how far AI-assisted development has come. It’s not replacing engineers overnight, but tools like Claude Code are already capable of building real software much faster than most of us expected. Curious to hear what other developers think about AI agents collaborating to build software.