Nice to talk to you again David!

You're linking to the wrong thing. This is the proper comparison to Tug: https://docs.vagrantup.com/v2/docker/index.html

Re your complaint: with the Docker provider, Vagrant only spins up _one_ VM (if you're not on Linux). After that, `vagrant up` just executes `docker` directly so there is no waiting around for bootstrapping. It even detects if you have Docker installed locally or not to decide whether it needs to run in the VM or not. And, if you're on Linux, it doesn't use a VM at all, unless you're on a kernel that doesn't support Docker, in which case it automatically/transparently starts the VM.

EDIT: Responding to David's comment below since it would go to deep: Vagrant is basically the same here. It doesn't require Dockerfiles, you can just spin up images.