Authentication for the frontend cloud

This post details how Clerk has adapted its authentication architecture for the 'frontend cloud' paradigm, emphasizing edge-native solutions. It highlights the use of framework-specific SDKs (including Next.js App Router and RSC support), component-based UIs (`<SignIn/>`, `<UserProfile/>`), and stateless session management with JWTs for sub-millisecond authentication at the edge. It also explains how JWT SSO and JWT templates enable composability with other frontend-first services.