Tina.io is the public-facing website and documentation portal for TinaCMS, an open-source Git-backed headless CMS. Built with Next.js 14, React, TypeScript, and Tailwind CSS, the application serves as both a marketing site for TinaCMS and a demonstration of its capabilities through dogfooding (using TinaCMS to manage its own content). The architecture follows a modular approach with reusable UI blocks, TinaCMS-powered content management, and specialized features like 3D globe visualization and interactive maps. Content is stored in MDX files and fetched via TinaCMS GraphQL API, while API routes handle integrations with services like Mailchimp, Algolia search, and GitHub. The site implements internationalization (English/Chinese) and includes analytics, contact forms, and newsletter functionality.