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--- title: Router UI description: An Expo Router submodule that provides headless tab components to create custom tab layouts. sourceCodeUrl: https://github.com/expo/expo/tree/main/packages/expo-router packageName: expo-router platforms: ["android", "ios", "tvos", "web"] --- `expo-router/ui` is a submodule of `expo-router` library and exports components and hooks to build custom tab layouts, rather than using the default [React Navigation](https://reactnavigation.org/) navigators provided by `expo-router`. > See the [Expo Router](./router) reference for more information about the file-based routing library for native and web app. ## Installation To use `expo-router/ui` in your project, you need to install `expo-router` in your project. Follow the instructions from the Expo Router's installation guide: ## Configuration in app config If you are using the [default](/more/create-expo/#--template) template to create a new project, `expo-router` [config plugin](/config-plugins/introduction/) is automatically configured in the app config automatically. ```json app.json { "expo": { "plugins": ["expo-router"] } } ``` ## Usage For information about using `expo-router/ui` in Custom tab layouts guide: ## API ```js ```