Newsletter signup section with an email field, light validation and a submit button that steps through idle, loading, success and error from your onSubscribe promise, a form that morphs into a confirmation with a draw-in check, a privacy note, optional reader avatars for social proof, and card or inline layouts.
pnpm dlx shadcn@latest add "https://karaui.kamisama-v0.my.id/r/newsletter-section.json"