1. Introduction
2. Documentation Links
3. 1. Tutorial
   1. 1.1. #[hooq] to capture error lines
   2. 1.2. Customize hooks with #[hooq::method(...)]
   3. 1.3. Create/use presets via flavors
   4. 1.4. Summary
4. 2. Reference
   1. 2.1. Attributes
   2. 2.2. Method
   3. 2.3. Meta Variables
   4. 2.4. Flavors
   5. 2.5. Features
5. 3. Recipes & Ideas
   1. 3.1. Perfect color-eyre
   2. 3.2. Batch apply under a module
   3. 3.3. Using in functions returning Option
   4. 3.4. Turn ? into .unwrap() behind a feature
   5. 3.5. Reinvent match desugaring