[scubbo]

The "this" in your second paragraph has an unclear referent. Are you saying that copy-pasted code definitions per-environment are necessary unless those environments are exact mirror-images? If so, that is untrue - CDK (and, I assume, any other IaC framework, with the appropriate terminology change) allows Constructs to be instantiated with different variables. For instance, you could have a Construct for your environment that accepts a `numServers` variable, and instantiate that Construct multiple times with different variables for beta, gamma, etc. Only one instance of the definitional code, but multiple instantiations.