One Signal SDK Error with Expo+ReactNative - react-native

Question

I'm trying to add the OneSignal SDK to my ReactNative project managed by Expo SDK, by following the guide here:
Expo One Signal
here is my plugin setup in App.js
export default function App() {
useEffect(() => {
///Other things
OneSignal.setAppId(Constants.manifest.extra.oneSignalAppId);
}, []);
unfortunately it doesn't work, first I was getting:
Invariant Violation: Native module cannot be null.
at node_modules/react-native/Libraries/Core/ExceptionsManager.js:104:6 in reportException
at node_modules/react-native/Libraries/Core/ExceptionsManager.js:172:19 in handleException
at node_modules/react-native/Libraries/Core/setUpErrorHandling.js:24:6 in handleError
at node_modules/#react-native/polyfills/error-guard.js:49:36 in ErrorUtils.reportFatalError
at node_modules/metro-runtime/src/polyfills/require.js:204:6 in guardedLoadModule
at http://127.0.0.1:19000/node_modules/expo/AppEntry.bundle?platform=ios&dev=true&hot=false&minify=false:263808:3 in global code
Invariant Violation: "main" has not been registered. This can happen if:
* Metro (the local dev server) is run from the wrong folder. Check if Metro is running, stop it and restart it in the current project.
* A module failed to load due to an error and `AppRegistry.registerComponent` wasn't called.
at node_modules/react-native/Libraries/Core/ExceptionsManager.js:104:6 in reportException
at node_modules/react-native/Libraries/Core/ExceptionsManager.js:172:19 in handleException
at node_modules/react-native/Libraries/Core/setUpErrorHandling.js:24:6 in handleError
at node_modules/#react-native/polyfills/error-guard.js:49:36 in ErrorUtils.reportFatalError
Then, after opening an issue in GitHub the author suggested my to install:
yarn add react-native-onesignal
Here is the Issue on Github.Then I started getting:
iOS Bundling failed 3417ms
Unable to resolve module fs from /Users/giulioserra/Documents/App/CTS/node_modules/onesignal-expo-plugin/build/onesignal/withOneSignalIos.js: fs could not be found within the project or in these directories:
node_modules
If you are sure the module exists, try these steps:
1. Clear watchman watches: watchman watch-del-all
2. Delete node_modules and run yarn install
3. Reset Metro's cache: yarn start --reset-cache
4. Remove the cache: rm -rf /tmp/metro-*
29 | exports.xcodeProjectAddNse = exports.withOneSignalIos = void 0;
30 | const config_plugins_1 = require("#expo/config-plugins");
> 31 | const fs = __importStar(require("fs"));
I cleared the cache but nothing, It seems so strange since fs package should be included in every node release as far as I know, and suggestions?