I'm presently about three quarters done with writing one of these myself; Lamdba plus SQS plus arbitrary functions. I have a different take on deployment, going

I'm presently about three quarters done with writing one of these myself; Lamdba plus SQS plus arbitrary functions. I have a different take on deployment, going with CloudFormation. Version updates are something you have to think about quite hard with this sort of system. The real challenge is how to manage within the 60 second, 1024 thread limits in a sane way, however. You have to approach application decomposition in a much more rigorous way.