diff --git a/.changeset/document-node-runtime.md b/.changeset/document-node-runtime.md
new file mode 100644
index 000000000..57a3848ad
--- /dev/null
+++ b/.changeset/document-node-runtime.md
@@ -0,0 +1,7 @@
+---
+'@gpuix/react': patch
+---
+
+Document existing Node.js runtime support and distinguish Bun's hot-remount development workflow from normal app startup.
+
+Fixes #84
diff --git a/README.md b/README.md
index fa1f109bb..ac02e031e 100644
--- a/README.md
+++ b/README.md
@@ -108,8 +108,14 @@ render(<App />, { title: 'My App', width: 800, height: 600 })
 bun --hot app.tsx
 ```
 
-Use `bun --hot`, not plain `bun`. A save then remounts React on the same
-window instead of opening a second one.
+For hot reload during development, use `bun --hot` rather than plain `bun`.
+A save then remounts React on the same window instead of opening a second one.
+
+Bun is not required to run the renderer. GPUIX uses Node-API native bindings,
+and React apps also run on Node.js, as [`disktree`](./disktree/) does. For
+Node.js, compile TSX to JavaScript first or use a Node-compatible TSX loader.
+The `--hot` option and same-window hot-remount workflow described below are
+Bun-specific; running an app on Node.js does not provide Bun's hot reload.
 
 ### 4. Ship a binary