## Customize vue2 app scan selector > For example, if you are using micro-app as your micro-frontend framework, the devtools cannot find Vue2 apps in `` by default. You can set a custom selector used to scan for Vue2 apps in your project with the following code in your frontend app: ```js if (process.env.NODE_ENV !== 'production') { window.VUE_DEVTOOLS_CONFIG = { customVue2ScanSelector: 'micro-app' } } ```