1. A journey with Rust by side roads
2. 1. Not obvious at first
3. 1. 1.1. Mutable reference
   2. 1.2. Tokio vs Futures
   3. 1.3. Spurious stream lock
   4. 1.4. Tokio spawn & lifetime
   5. 1.5. Type-Driven API
4. 2. Rustification
5. 1. 2.1. Option Cheat Sheet
6. 3. Cookbook