The real challenges of Next.js App Router in Web3: Hydration, Wallets, and SSR

We’ve all heard the hype about Next.js Server Components, and for traditional web apps, the performance gains are undeniable. But building a DeFi dApp introduces a whole different set of headaches. When you rely heavily on browser-injected wallets (like MetaMask or Phantom), the server has no idea what the user's connection state is during the initial render. This leads to the classic React hydration mismatch errors: the server renders a generic "Connect Wallet" button, but the client immediately detects an injected provider and tries to render the user's ENS name and balance. Wrapping everything in useEffect or forcing client boundaries ('use client') across your entire application essentially defeats the purpose of the App Router's architecture. How are your teams structuring your Web3 frontends in Next 14+ to actually leverage Server Components for static marketing pages and heavy data fetching (like protocol TVL or historical charts), while cleanly isolating the highly dynamic, wal