I have used protobufs and grpc on the web before. Maybe this project is the magic bullet that makes it easy to do, but in the past that typescript support from Google and 3rd parties (improbable eng) was lacking and there was little interest in making simple changes to make it easier to use.

On top of that, the increase in JS shipped to user's due to the size of the generated protobuf objects was unacceptable for anything that cares about keeping their bundle size manageable. Have you done anything to address this issue?