How Mosaic works

Mosaic is built around three arcs. You move through them in order. Each one ends with something real you've built.

• Arc I — Foundations. Free. You learn to talk to AI precisely, run your first terminal commands, and understand what an LLM actually is. You ship your first artifact in the browser.
• Arc II — Craft. Paid. You start writing and running code — Python first, then full-stack web. You use Claude Code, the CLI version of Claude that actually edits files on your machine.
• Arc III — Capstone. Paid. You pick something real to build. Scope it. Build it. Ship it. Portfolio piece you own.

Each arc contains chapters. Each chapter contains challenges. You go in order. Progress saves automatically.