diff --git a/.changeset/green-berries-wave.md b/.changeset/green-berries-wave.md
new file mode 100644
index 0000000000..574d329488
--- /dev/null
+++ b/.changeset/green-berries-wave.md
@@ -0,0 +1,5 @@
+---
+'@backstage/cli': patch
+---
+
+feat: experimentally support using rspack instead under `EXPERIMENTAL_RSPACK` env flag
diff --git a/packages/cli/src/lib/bundler/optimization.ts b/packages/cli/src/lib/bundler/optimization.ts
index 1cef6b6205..4c569e5ccf 100644
--- a/packages/cli/src/lib/bundler/optimization.ts
+++ b/packages/cli/src/lib/bundler/optimization.ts
@@ -24,10 +24,6 @@ export const optimization = (
 ): WebpackOptionsNormalized['optimization'] => {
   const { isDev, useRspack } = options;
 
-  const extralOptions = useRspack
-    ? {}
-    : { maxAsyncRequests: Infinity, maxInitialRequests: Infinity };
-
   const rspack = useRspack
     ? (require('@rspack/core') as typeof import('@rspack/core').rspack)
     : undefined;
@@ -82,7 +78,10 @@ export const optimization = (
           priority: 10,
           minSize: 100000,
           minChunks: 1,
-          ...extralOptions,
+          ...(!useRspack && {
+            maxAsyncRequests: Infinity,
+            maxInitialRequests: Infinity,
+          }),
         }, // filename is not included in type, but we need it
         // Group together the smallest modules
         vendor: {