Snap was one of the first large companies built almost entirely on a high-level cloud platform, Google's App Engine. Snap was founded in July 2011 - years before Google Cloud and Microsoft Azure were even a thing. Snap's choice gives us some interesting data on the future of Platforms as a Service (PaaS), which is what App Engine qualifies as (to be contrasted with a lower-level, Infrastructure as a Service, IaaS). Even before then, CEOs and managers have debated how much technology COGs to outsource for decades. Now, the answers to some questions are obvious, but new choices arose.