Hi, I'm the lead programmer of the FormKiQ Document Stack. Most organizations are moving to the cloud, and we're seeing a need for readymade architectures that organize and coordinate AWS products. And while it's still a heated debate here on Hacker News, we've found that a serverless architecture works very well for what we're trying to accomplish.
The Document Stack installs with CloudFormation, and includes such features as an API and virus scanning, all existing within an organization's own private cloud.