> ## Documentation Index
> Fetch the complete documentation index at: https://devkit4ai.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Use Case: Custom Auth Flow

> Tailor authentication while keeping parity with the Cloud API.

This scenario shows how to extend login and registration without breaking compatibility:

* Start with the shared server actions (`backendLoginAction`, `backendRegisterAction`) so JWT handling stays consistent.
* Add custom validation or multi-factor checks in wrappers that still call the Cloud API endpoints described in `cloud-api/auth/*`.
* Update UI states using the existing form components (`components/form-message`, `components/submit-button`) to keep UX consistent.