diff --git a/dev-apps/js-cloud-server/cloudflare-worker/webpack.config.js b/dev-apps/js-cloud-server/cloudflare-worker/webpack.config.js
index d0a4edd31..8551bd932 100644
--- a/dev-apps/js-cloud-server/cloudflare-worker/webpack.config.js
+++ b/dev-apps/js-cloud-server/cloudflare-worker/webpack.config.js
@@ -1,27 +1,14 @@
 const { composePlugins, withNx } = require('@nx/webpack')
+const {
+    configureExternals,
+    configureNodeResolve,
+} = require('../../../webpack-utils')
 
 module.exports = composePlugins(withNx(), (config, { options }) => {
     config.node = {
         __dirname: true,
     }
-    if (!config.resolve) {
-        config.resolve = {}
-    }
-    // Disable browser field resolution for node targets
-    config.resolve.mainFields = ['main', 'module']
-    config.resolve.conditionNames = ['node', 'require', 'import']
-    // Configure externals - webpack externals function
-    if (options.external && Array.isArray(options.external)) {
-        config.externals = config.externals || []
-        const externalArray = Array.isArray(config.externals)
-            ? config.externals
-            : [config.externals]
-        config.externals = [
-            ...externalArray,
-            ...options.external.map((pkg) => ({
-                [pkg]: `commonjs ${pkg}`,
-            })),
-        ]
-    }
+    configureNodeResolve(config)
+    configureExternals(config, options)
     return config
 })
diff --git a/dev-apps/nodejs-cloud/webpack.config.js b/dev-apps/nodejs-cloud/webpack.config.js
index 2db5044a7..25f74ca61 100644
--- a/dev-apps/nodejs-cloud/webpack.config.js
+++ b/dev-apps/nodejs-cloud/webpack.config.js
@@ -1,27 +1,11 @@
 const { composePlugins, withNx } = require('@nx/webpack')
+const {
+    configureExternals,
+    configureNodeResolve,
+} = require('../../webpack-utils')
 
 module.exports = composePlugins(withNx(), (config, { options }) => {
-    if (!config.resolve) {
-        config.resolve = {}
-    }
-    config.resolve.extensionAlias = {
-        '.js': ['.ts', '.js'],
-    }
-    // Disable browser field resolution for node targets
-    config.resolve.mainFields = ['main', 'module']
-    config.resolve.conditionNames = ['node', 'require', 'import']
-    // Configure externals - webpack externals function
-    if (options.external && Array.isArray(options.external)) {
-        config.externals = config.externals || []
-        const externalArray = Array.isArray(config.externals)
-            ? config.externals
-            : [config.externals]
-        config.externals = [
-            ...externalArray,
-            ...options.external.map((pkg) => ({
-                [pkg]: `commonjs ${pkg}`,
-            })),
-        ]
-    }
+    configureNodeResolve(config)
+    configureExternals(config, options)
     return config
 })
diff --git a/dev-apps/nodejs-local/webpack.config.js b/dev-apps/nodejs-local/webpack.config.js
index b3674e7c0..5307cde2a 100644
--- a/dev-apps/nodejs-local/webpack.config.js
+++ b/dev-apps/nodejs-local/webpack.config.js
@@ -1,5 +1,9 @@
 const { composePlugins, withNx } = require('@nx/webpack')
 const path = require('path')
+const {
+    configureExternals,
+    configureNodeResolve,
+} = require('../../webpack-utils')
 
 module.exports = composePlugins(withNx(), (config, { options }) => {
     // turn on __dirname replacement so that the WASM file can be referenced by the assemblyscript lib
@@ -24,15 +28,7 @@ module.exports = composePlugins(withNx(), (config, { options }) => {
         }),
     )
 
-    if (!config.resolve) {
-        config.resolve = {}
-    }
-    config.resolve.extensionAlias = {
-        '.js': ['.ts', '.js'],
-    }
-    // Disable browser field resolution for node targets
-    config.resolve.mainFields = ['main', 'module']
-    config.resolve.conditionNames = ['node', 'require', 'import']
+    configureNodeResolve(config)
     // Don't use browser field for resolution
     if (!config.resolve.aliasFields) {
         config.resolve.aliasFields = []
@@ -41,25 +37,7 @@ module.exports = composePlugins(withNx(), (config, { options }) => {
     if (!config.resolve.modules) {
         config.resolve.modules = ['node_modules']
     }
-    // Configure externals - use array format which is simpler and more reliable
-    if (options.external && Array.isArray(options.external)) {
-        // Convert to object format for webpack externals
-        const externalsObj = {}
-        options.external.forEach((pkg) => {
-            externalsObj[pkg] = `commonjs ${pkg}`
-        })
-        const originalExternals = config.externals
-        if (originalExternals) {
-            if (Array.isArray(originalExternals)) {
-                config.externals = [...originalExternals, externalsObj]
-            } else if (typeof originalExternals === 'object') {
-                config.externals = { ...originalExternals, ...externalsObj }
-            } else {
-                config.externals = [originalExternals, externalsObj]
-            }
-        } else {
-            config.externals = externalsObj
-        }
-    }
+
+    configureExternals(config, options)
     return config
 })
diff --git a/dev-apps/openfeature-nodejs/webpack.config.js b/dev-apps/openfeature-nodejs/webpack.config.js
index 00b19d453..a87da7bf1 100644
--- a/dev-apps/openfeature-nodejs/webpack.config.js
+++ b/dev-apps/openfeature-nodejs/webpack.config.js
@@ -1,6 +1,10 @@
 const { composePlugins, withNx } = require('@nx/webpack')
 const path = require('path')
 const webpack = require('webpack')
+const {
+    configureExternals,
+    configureNodeResolve,
+} = require('../../webpack-utils')
 
 module.exports = composePlugins(withNx(), (config, { options }) => {
     // turn on __dirname replacement so that the WASM file can be referenced by the assemblyscript lib
@@ -24,15 +28,7 @@ module.exports = composePlugins(withNx(), (config, { options }) => {
         }),
     )
 
-    if (!config.resolve) {
-        config.resolve = {}
-    }
-    config.resolve.extensionAlias = {
-        '.js': ['.ts', '.js'],
-    }
-    // Disable browser field resolution for node targets
-    config.resolve.mainFields = ['main', 'module']
-    config.resolve.conditionNames = ['node', 'require', 'import']
+    configureNodeResolve(config)
     // Don't use browser field for resolution
     if (!config.resolve.aliasFields) {
         config.resolve.aliasFields = []
@@ -41,18 +37,7 @@ module.exports = composePlugins(withNx(), (config, { options }) => {
     if (!config.resolve.modules) {
         config.resolve.modules = ['node_modules']
     }
-    // Configure externals - webpack externals function
-    if (options.external && Array.isArray(options.external)) {
-        config.externals = config.externals || []
-        const externalArray = Array.isArray(config.externals)
-            ? config.externals
-            : [config.externals]
-        config.externals = [
-            ...externalArray,
-            ...options.external.map((pkg) => ({
-                [pkg]: `commonjs ${pkg}`,
-            })),
-        ]
-    }
+
+    configureExternals(config, options)
     return config
 })
diff --git a/webpack-utils.js b/webpack-utils.js
new file mode 100644
index 000000000..e5ae5b99d
--- /dev/null
+++ b/webpack-utils.js
@@ -0,0 +1,51 @@
+/**
+ * Shared webpack configuration utilities
+ */
+
+/**
+ * Merges external packages from Nx options into webpack config.externals.
+ * Handles array, object, and function formats for existing externals.
+ *
+ * @param {Object} config - Webpack configuration object
+ * @param {Object} options - Nx build options
+ */
+function configureExternals(config, options) {
+    if (!options.external || !Array.isArray(options.external)) {
+        return
+    }
+
+    const externalPackages = options.external.map((pkg) => ({
+        [pkg]: `commonjs ${pkg}`,
+    }))
+
+    const originalExternals = config.externals
+    if (!originalExternals) {
+        config.externals = externalPackages
+    } else if (Array.isArray(originalExternals)) {
+        config.externals = [...originalExternals, ...externalPackages]
+    } else {
+        config.externals = [originalExternals, ...externalPackages]
+    }
+}
+
+/**
+ * Configures resolve settings for Node.js targets.
+ * Sets up extension aliases, main fields, and condition names.
+ *
+ * @param {Object} config - Webpack configuration object
+ */
+function configureNodeResolve(config) {
+    if (!config.resolve) {
+        config.resolve = {}
+    }
+    config.resolve.extensionAlias = {
+        '.js': ['.ts', '.js'],
+    }
+    config.resolve.mainFields = ['main', 'module']
+    config.resolve.conditionNames = ['node', 'require', 'import']
+}
+
+module.exports = {
+    configureExternals,
+    configureNodeResolve,
+}