@bozhou_ai: The Codex tutorials on the market are too scattered. Official documentation, videos, and various bloggers are all separate pieces. For beginners who want to get started systematically, it takes a lot of time just to stitch these together. So my teammates and I spent ten days compiling a 'Codex Orange Book'. Today it's free and open source—take it directly. A 206-page PDF, from...

The Codex tutorials on the market are too scattered. Official documentation, videos, and various bloggers are all separate pieces. For beginners who want to get started systematically, it takes a lot of time just to stitch these together. So my teammates and I spent ten days compiling a 'Codex Orange Book'. Today it's free and open source—take it directly. A 206-page PDF that takes you from zero to being able to run real projects with Codex. Just work through each chapter: 1. First understand what Codex is What exactly is the difference between it and ChatGPT, Cursor, Claude Code? How to choose among the four entry points? First get the concepts straight. 2. Installation, configuration, and environment preparation App, CLI, IDE plugin, Web—four endpoints, from download to first run, step by step. 3. Core features explained Automation, plugins, Skill, MCP, Git/GitHub, cloud execution, memory system AGENTS.md—explained thoroughly one by one. 4. Standard workflow Our own standardized six-step method, plus a set of ready-to-use task templates. 5. Practical case library From a pet snack official website and admin backend to investment PPT and promotional video—five cases done step by step. All in Chinese, for beginners, with tons of actual screenshots. The pitfalls we encountered are all written in. Open source address: https://github.com/bozhouDev/codex-orange-book...