1. Introduction
  2. Prerequisites and Installation
  3. Quick Start: Your First Extension
  4. Project Structure
  5. Anatomy of a Rusty Ruby Gem: hello_rusty
  6. Development Approaches
  7. Working with Ruby Objects
  8. Ruby Classes and Modules
  9. Error Handling
  10. Memory Management & Safety
  11. The Build Process
  12. Cross-Platform Development
  13. Testing Extensions
  14. Debugging & Troubleshooting
  15. Troubleshooting Guide
  16. rb-sys Crate Features
  17. rb_sys Gem Configuration
  18. Test Helpers
  19. Getting Help
  22. Contributing to rb-sys