I have a somewhat non-standard setup whereby I have a GCP project for each environment (dev, staging, prod, etc) containing resources like Pub/Sub topics for that environment, but all databases and compute are in the production project (to save money on K8s cluster fees etc) What would be the best way of setting this up? Currently I'm thinking that the best way would be to have a stack for each of the environments which contains the common stuff, and then to have a single standalone stack that contains the additional resources for production; not sure if there's a better way though, so would appreciate any suggestions for this