Recently implented some heavy rate limiting for REQ messages. Including completely dropping those who include blocked kinds.

So far so good. Fortunately, R2 has cheap class B ops after the first 10 mill

@note1pzw4h8076nthzzt7mnyt3esheaykdlcsqz5qpta8eqrujfqvzvksnzl9n9 

 Makes sense. I am yet to find some time to contribute, we need to get it into a proper structure and use typescript. I also think there are caching optimizations that could be made. As well as, usage for DO and event propagation. 

 Building out for other serverless would be awesome 🤙