Default to the server
Fetch close to the data on the server. Push interactivity to small client islands. Huge “use client” pages defeat the point of RSC.
Pass serializable props across the boundary. Functions and class instances do not travel.
Caching is a product decision
Static where content is public and slow-changing. Dynamic where personalization or freshness matters. revalidate is a dial, not a religion.
If the homepage looks empty because an aggregate API failed, add static fallbacks — users should still see value.
Loading and error UX
loading.tsx and error.tsx exist so routes feel intentional. Empty black pages train users to bounce — and ad networks notice thin experiences.
#nextjs#rsc#routing