Why composition – not reactivity – leads UI’s future

Traditional frontend-backend separation is giving way to composition-based architecture where components handle their own data fetching rather than relying on separate API layers. React Server Components enable this shift by allowing components to fetch server data directly, eliminating the need for Backend-for-Frontend patterns that create screen-specific endpoints. This compositional approach collocates data logic with UI components, making applications more reusable and maintainable while organizing code around user-facing features rather than technical layers.