A 74-day retrospective on building EverLingo from scratch with OpenCode: how to organize docs and diagrams for effective collaboration with AI Agents; the evolution and pitfalls of the project's in-repo AI Agent harness (multi-agent collaboration); and how the product grew from a WeChat mini-bot into a multi-user containerized service.

Introduces how to use the `gemini-cli` command-line tool to analyze its own source code repository. Through a series of interactive commands, we will explore the design and implementation of `gemini-cli`. This method not only demonstrates the capabilities of AI tools but also provides developers with a new way to learn and explore.