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Probably not right now, it's designed for managing cloud resources, but maybe... depends what exactly you envision. I was thinking the other day about if pulumi could drive local virtualbox machines to allow writing one pulumi program with some if statements to decided if it builds locally or against a real cloud

You can use the Kubernetes support to do local development targeting Minikube or Docker for Mac.

Indeed things like VirtualBox could one day be supported as well.