Hey is a decentralized social media application built on the Lens Protocol. It provides a full-featured frontend for users to interact with the Lens blockchain, including wallet authentication, post creation and engagement (likes, comments, reposts, collects, tips), group management, notifications, and profile customization. The application uses React 19 with Vite for bundling, TypeScript for type safety, and Tailwind CSS for styling. State management combines Apollo Client for GraphQL data persistence with Zustand stores for client-side state (account, notifications, preferences). Key architectural patterns include optimistic UI updates for blockchain transactions, portal-based modals, and custom hooks for transaction handling and media uploads. The codebase demonstrates strong modularity with reusable UI components and clear separation between UI, state management, and data layers.