I have provided the source code to my video on the react-native-ota-hot-update library integration with AWS S3 and Firebase Storage.
You can find the custom web dashboard code to upload the JS bundles to AWS S3 bucket or to Firebase Storage and the source code is in React JS.
The backend uses the Next JS API routes and you can modify it based on your requirements.
Youtube video link:
https://youtu.be/G8lc-G4pdms
Library Link:
https://github.com/vantuan88291/react-native-ota-hot-update