docs: update expo guide (#7984)

* docs: update expo guide

* Update index.md

Author: vonovak

docs/index.md

@@ -181,7 +181,7 @@ you can follow the manual installation steps for [iOS](/install-ios) and [Androi
 
 Integration with Expo is possible when using a [development build](https://docs.expo.dev/workflow/overview/#development-builds). You can configure the project via [config plugins](https://docs.expo.io/guides/config-plugins/) or manually configure the native projects yourself (the "bare workflow").
 
-_NOTE:_ React Native Firebase cannot be used in the pre-compiled [Expo Go app](https://docs.expo.dev/get-started/expo-go/) because React Native Firebase uses native code that is not compiled into Expo Go.
+_NOTE:_ React Native Firebase cannot be used in the pre-compiled [Expo Go app](https://docs.expo.dev/workflow/overview/#expo-go-an-optional-tool-for-learning) because React Native Firebase uses native code that is not compiled into Expo Go.
 
 #### Your Expo project
 
@@ -195,10 +195,10 @@ Similarly you can install other React Native Firebase modules such as for Authen
 
 #### Configure React Native Firebase modules
 
-If you are manually adjusting your Android and iOS projects, follow the same instructions as [React Native CLI projects](#installation-for-react-native-cli-projects).
-
 The recommended approach to configure React Native Firebase is to use [Expo Config Plugins](https://docs.expo.dev/config-plugins/introduction/). You will add React Native Firebase modules to the [`plugins`](https://docs.expo.io/versions/latest/config/app/#plugins) array of your `app.json` or `app.config.js`. See the note below to determine which modules require Config Plugin configurations.
 
+If you are instead manually adjusting your Android and iOS projects (this is not recommended), follow the same instructions as [React Native CLI projects](#installation-for-react-native-cli-projects).
+
 To enable Firebase on the native Android and iOS platforms, create and download Service Account files for each platform from your Firebase project. Then provide paths to the downloaded `google-services.json` and `GoogleService-Info.plist` files in the following `app.json` fields: [`expo.android.googleServicesFile`](https://docs.expo.io/versions/latest/config/app/#googleservicesfile-1) and [`expo.ios.googleServicesFile`](https://docs.expo.io/versions/latest/config/app/#googleservicesfile). See the example configuration below.
 
 For iOS only, since `firebase-ios-sdk` requires `use_frameworks` then you want to configure [`expo-build-properties`](https://docs.expo.dev/versions/latest/sdk/build-properties/#pluginconfigtypeios) `app.json` by adding `"useFrameworks": "static"`. See the example configuration below.
@@ -237,7 +237,7 @@ The following is an example `app.json` to enable the React Native Firebase modul
 
 #### Local app compilation
 
-If you are compiling your app locally, use the local app compilation steps described in [Local app development](https://docs.expo.dev/guides/local-app-development/) guide in Expo docs.
+If you are compiling your app locally, run [`npx expo prebuild --clean`](https://docs.expo.dev/workflow/prebuild/) to generate the native project directories. Then, follow the local app compilation steps described in [Local app development](https://docs.expo.dev/guides/local-app-development/) guide in Expo docs. If you prefer using a build service, refer to [EAS Build](https://docs.expo.dev/build/setup/).
 
 #### Expo Tools for VSCode