Core Concepts

Learn the return-type model, app lifecycle, and configuration surface

3 pages in this section

Chirp's core model is type-driven: route handlers return values that carry rendering intent, the app freezes before serving, and configuration is explicit. Start here when you need the mental model behind the task-oriented sections.

Mutable setup, frozen runtime

How Chirp's App transitions from configuration to serving.

The type is the intent

All the types route handlers can return and what they mean.

AppConfig frozen dataclass

Every configuration option with IDE autocomplete.