What's the difference between fly.io and any other CDN? Can it serve dynamic encrypted data from the backend to the edge faster?
This means we do things like handle unlimited ssl certs (for apps that support custom hostnames), do load balancing on app instance, including geo load balancing, and even run code at the edge.
My favorite thing we do is app friendly caching. We're "aware" of app users and can handle caching logic well beyond the http cache control and vary headers.