feat: rsc implementation

README.md

@@ -8,11 +8,18 @@ A learning project: building a React metaframework from scratch.
 |---|---------|--------|
 | 1 | SSG | Done |
 | 2 | Hydration | Done |
-| 3 | getStaticProps | Done |
-| 4 | SSR + Loaders | - |
-| 5 | RSC | - |
+| 3 | getStaticProps | Superseded |
+| 4 | SSR + Loaders | Removed |
+| 5 | RSC | In progress |
 | 6 | Server Functions | - |
 
+## RSC Progress
+
+- Milestone 1 complete: `/` renders through a Flight-backed document pipeline with a generated client reference manifest and a hydrated `'use client'` counter island.
+- Milestone 2 complete for the current routes: `/`, `/about`, `/user-profile`, and `/suspense-demo` all render as server components through the RSC document pipeline. Route data now lives inside server components instead of old loader APIs.
+- Milestone 3 complete: same-origin client navigation fetches Flight payloads from `/__matcha_rsc`, applies the returned tree, and handles back/forward through the same RSC path.
+- Remaining RSC work: add server references/actions and harden streaming, Suspense, and route diagnostics.
+
 ## Usage
 
 ```bash