Inside your project, run;

npm i @jitsi/react-native-sdk

If there are conflicts, you can use --force
Additionally, if not already installed, some dependencies will need to be added.

This can be done by running the following script:

node node_modules/@jitsi/react-native-sdk/update_dependencies.js

This will check and update all your dependencies.

After that you need to npm i, if some dependency versions were updated.

Because of SVG use in react native, you need to update metro.config your project's file:

const { getDefaultConfig } = require('metro-config');

module.exports = (async () => {
  const {
    resolver: {
      sourceExts,
      assetExts
    }
  } = await getDefaultConfig();

  return {
    transformer: {
      babelTransformerPath: require.resolve('react-native-svg-transformer'),
      getTransformOptions: async () => ({
        transform: {
          experimentalImportSupport: false,
          inlineRequires: true,
        },
      }),
    },
    resolver: {
      assetExts: assetExts.filter(ext => ext !== 'svg'),
      sourceExts: [...sourceExts, 'svg']
    }
  }
})();

• Add a Privacy - Camera Usage Description
• Add a Privacy - Microphone Usage Description

• Signing & capabilites:
  • Add Background modes
    • Audio
    • Voice over IP
    • Background fetch

Run;

cd ios && pod install && cd ..

• In your build.gradle have at least minSdkVersion = 24

• In android/app/src/debug/AndroidManifest.xml and android/app/src/main/AndroidManifest.xml, under the </application> tag, include

    <uses-permission android:name="android.permission.RECORD_AUDIO" />
    <uses-permission android:name="android.permission.CAMERA" />

  Services

  Screen share

• Go to your MainApplication.java file and add:

  1. import com.oney.WebRTCModule.WebRTCModuleOptions; that comes from react-native-webrtc dependency.

  2. WebRTCModuleOptions options = WebRTCModuleOptions.getInstance(); instance it.

  3. options.enableMediaProjectionService = true; enable foreground service that takes care of screen-sharing feature.

• Go to your android/app/src/main/AndroidManifest.xml, under the </application> tag and include

  <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
  <uses-permission android:name="android.permission.FOREGROUND_SERVICE_MEDIA_PROJECTION" />

If you want to test all the steps before applying them to your app, you can check our React Native SDK sample app here: https://github.com/jitsi/jitsi-meet-sdk-samples/tree/master/react-native

• If you are planning to use tokens or another domain, you can do that by updating the following props, as shown below.
• For example:

  <JitsiMeeting
    room = { 'ThisIsNotATestRoomName' }
    serverURL = { 'https://meet.jit.si/' }
    token={ 'dkhalhfajhflahlfaahalhfahfsl' } />

• If you are planning to add custom overflow menu buttons, you can do that by updating the config prop, as shown below.
• For example:

  <JitsiMeeting
    config = {{
        customToolbarButtons: [
            {
                icon: "https://w7.pngwing.com/pngs/987/537/png-transparent-download-downloading-save-basic-user-interface-icon-thumbnail.png",
                id: "btn1",
                text: "Button one"
            }, {
                icon: "https://w7.pngwing.com/pngs/987/537/png-transparent-download-downloading-save-basic-user-interface-icon-thumbnail.png",
                id: "btn2",
                text: "Button two"
            }
        ]
    }}
    room = { 'ThisIsNotATestRoomName' }
    serverURL = { 'https://meet.jit.si/' }
    token = { 'dkhalhfajhflahlfaahalhfahfsl' } />

For more details on how you can use React Native SDK with React Native app, you can follow this link: https://jitsi.github.io/handbook/docs/dev-guide/dev-guide-react-native-sdk