diff --git a/apps/matrix/apps/mobile/eas-build-pre-install.sh b/apps/matrix/apps/mobile/eas-build-pre-install.sh
new file mode 100755
index 000000000..6a507a497
--- /dev/null
+++ b/apps/matrix/apps/mobile/eas-build-pre-install.sh
@@ -0,0 +1,13 @@
+#!/bin/bash
+# EAS Build pre-install hook
+# Creates .npmrc with node-linker=hoisted at the monorepo root
+# so pnpm uses a flat node_modules structure compatible with
+# React Native / Metro bundler module resolution.
+
+MONOREPO_ROOT="$EAS_BUILD_WORKINGDIR"
+if [ -z "$MONOREPO_ROOT" ]; then
+  MONOREPO_ROOT=$(cd "$(dirname "$0")/../../../.." && pwd)
+fi
+
+echo "node-linker=hoisted" > "$MONOREPO_ROOT/.npmrc"
+echo "Created .npmrc with node-linker=hoisted at $MONOREPO_ROOT"
diff --git a/apps/matrix/apps/mobile/metro.config.js b/apps/matrix/apps/mobile/metro.config.js
index 47e3a126e..84243860e 100644
--- a/apps/matrix/apps/mobile/metro.config.js
+++ b/apps/matrix/apps/mobile/metro.config.js
@@ -1,6 +1,5 @@
 const { getDefaultConfig } = require('expo/metro-config');
 const { withNativeWind } = require('nativewind/metro');
-const path = require('path');
 
 const config = getDefaultConfig(__dirname);
 
@@ -20,12 +19,4 @@ config.resolver.resolveRequest = (context, moduleName, platform) => {
 	return context.resolveRequest(context, moduleName, platform);
 };
 
-// Monorepo workspace support
-const monorepoRoot = path.resolve(__dirname, '../../../..');
-config.watchFolders = [monorepoRoot];
-config.resolver.nodeModulesPaths = [
-	path.resolve(__dirname, 'node_modules'),
-	path.resolve(monorepoRoot, 'node_modules'),
-];
-
 module.exports = withNativeWind(config, { input: './global.css' });