Yes. I currently have an FP system where in dev and test the interface kicks to an in memory multi state machine, and in lab and prod it goes to libvirt (which

Yes. I currently have an FP system where in dev and test the interface kicks to an in memory multi state machine, and in lab and prod it goes to libvirt (which has costly network transactions) the modules implements the same API, and are swapped out at compile time.... It gets even better, in test the implementation partitions over checked out sessions so that acceptance tests can be concurrent with each test having its own view of the universe in spite of having a single state agent.