diff --git a/packages/backend/package.json b/packages/backend/package.json
index a011eb83ab..f4ffe2f514 100644
--- a/packages/backend/package.json
+++ b/packages/backend/package.json
@@ -88,6 +88,7 @@
 		"@nestjs/common": "11.1.18",
 		"@nestjs/core": "11.1.18",
 		"@nestjs/testing": "11.1.18",
+		"@oxc-project/runtime": "0.126.0",
 		"@peertube/http-signature": "1.7.0",
 		"@sentry/node": "10.47.0",
 		"@sentry/profiling-node": "10.47.0",
diff --git a/packages/backend/rolldown.config.ts b/packages/backend/rolldown.config.ts
index 382a1f7290..5ca07a5f87 100644
--- a/packages/backend/rolldown.config.ts
+++ b/packages/backend/rolldown.config.ts
@@ -34,7 +34,7 @@ function backendDevServerPlugin(): Plugin {
 			if (backendProcess) {
 				await killBackendProcess();
 			}
-			backendProcess = execaNode('./built/entry.js', {
+			backendProcess = execaNode('./built/entry.js', [], {
 				stdout: process.stdout,
 				stderr: process.stderr,
 				env: {
@@ -102,6 +102,6 @@ export default defineConfig((args) => {
 			clearScreen: false,
 		},
 		// ビルドの高速化のために、watchモードのときは外部モジュールは全てバンドルしないようにする
-		external: isWatchMode ? [/node_modules/] : externalModules,
+		external: isWatchMode ? /^(?!@\/)[^.\/](?!:[\/\\])/ : externalModules,
 	};
 });
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index b901155409..62aad2d50c 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -138,6 +138,9 @@ importers:
       '@nestjs/testing':
         specifier: 11.1.18
         version: 11.1.18(@nestjs/common@11.1.18(reflect-metadata@0.2.2)(rxjs@7.8.2))(@nestjs/core@11.1.18)(@nestjs/platform-express@11.1.18)
+      '@oxc-project/runtime':
+        specifier: 0.126.0
+        version: 0.126.0
       '@peertube/http-signature':
         specifier: 1.7.0
         version: 1.7.0
@@ -3344,6 +3347,10 @@ packages:
     peerDependencies:
       '@opentelemetry/api': ^1.1.0
 
+  '@oxc-project/runtime@0.126.0':
+    resolution: {integrity: sha512-oksjxfqDNmIYMGlIgLzYgnz5YjZax27RtQezsPpKEGo9AC5LOaIGHsivCCeaAWdCtPnRyjZXM/7svreCC8kZVQ==}
+    engines: {node: ^20.19.0 || >=22.12.0}
+
   '@oxc-project/types@0.123.0':
     resolution: {integrity: sha512-YtECP/y8Mj1lSHiUWGSRzy/C6teUKlS87dEfuVKT09LgQbUsBW1rNg+MiJ4buGu3yuADV60gbIvo9/HplA56Ew==}
 
@@ -13911,6 +13918,8 @@ snapshots:
       '@opentelemetry/api': 1.9.1
       '@opentelemetry/core': 2.6.1(@opentelemetry/api@1.9.1)
 
+  '@oxc-project/runtime@0.126.0': {}
+
   '@oxc-project/types@0.123.0': {}
 
   '@oxc-project/types@0.124.0': {}