Integration
The reusable source is written to @components/signup-page-1.tsx.
The registry also includes app/signup-page-1/page.tsx as a complete preview route; an existing application can keep the reusable component files without adopting that route.
Example content is isolated in @components/data/signup-page-1-data.tsx (socialButtons); replace those fixtures with application data rather than editing layout markup in several places.