Everything in this folder is built with Claude Code, Anthropic's building tool. Set up Claude Code on your computer, then explore real applications and their recorded development sessions.
Prepare your Mac or Windows computer before starting your first application.
What to sign up for, download, install, and type first. Mac and Windows, side by side. About twenty minutes.
Each application contains its actual development sessions, in sequence.
A messaging app built from one sentence. Follow the original build, AI guardrail testing, development history, and the upcoming mobile release.
Watch Relay take shape, from the first working messaging app to its AI assistant, safeguards, and development records.
Watch the original development walkthrough: create Relay and get the first version running online.
One recorded development session: ChatGPT reviews the specification, Claude Code implements and tests safeguards, an incorrect refusal is discovered, and the changes receive a second review.
See how changes are recorded in commits and why a development log matters as the project grows. This session is not yet published.
Explore the deployed messaging app and its AI assistant after watching how the safeguards were built and evaluated.
The web app is already running. The next step is packaging and testing Relay for mobile distribution.
Wrap the working Relay web app for iOS and Android, test the mobile experience, then prepare and submit it to the Apple App Store and Google Play.
Check logs, permissions, and configuration instead of trusting every AI response.
Explore phone and cloud sessions, including what happens when a computer sleeps.