This repository contains the source code for Comprehensive Rust, a multi-day Rust course developed by the Android team at Google. It is structured as an mdBook with slides, speaker notes, interactive code examples, and exercises. The course covers Rust fundamentals, Android and Chromium integration, bare-metal development, concurrency, async, unsafe Rust, and idiomatic patterns. The codebase includes custom mdBook preprocessors (mdbook-course for structured course scheduling, mdbook-exerciser for extracting exercise starter files), a developer automation tool (xtask), and a comprehensive CI/CD pipeline that builds the book in multiple languages, runs Rust tests via Bazel and Cargo, and performs browser-based WebDriverIO tests. While the primary output is educational content, the tooling infrastructure is well-engineered and demonstrates reusable patterns for structured documentation and exercise management. The repository is actively maintained with frequent commits, issue triage, and translation support for over 17 languages.