run local dev server and react-scripts in same session

package.json

@@ -9,14 +9,23 @@
     "react-scripts": "1.1.4"
   },
   "scripts": {
-    "start": "react-scripts start",
     "bootstrap": "node ./init-faunadb.js",
-    "buildFunctions": "netlify-lambda build functions -c ./webpack.config.js",
+    "start": "concurrently \"react-scripts start\" \"npm run startServer\"",
+    "startServer": "netlify-lambda serve functions -c ./webpack.config.js",
     "build": "npm run buildFunctions && react-scripts build",
+    "buildFunctions": "netlify-lambda build functions -c ./webpack.config.js",
     "test": "react-scripts test --env=jsdom",
     "eject": "react-scripts eject"
   },
   "devDependencies": {
     "netlify-lambda": "^0.4.0"
+  },
+  "proxy": {
+    "/.netlify/functions": {
+      "target": "http://localhost:9000",
+      "pathRewrite": {
+        "^/\\.netlify/functions": ""
+      }
+    }
   }
 }