Can you elaborate on why vagrant to docker is a mistake? I find the docker workflow infinitely better and faster to iterate for making dev environments.
E.G. my dev Vagrantfile fits in a small screen, and provisioning is handled by a single Ansible playbook that works for all environments (using conditionals). So there's no need to maintain a separate dev container, and a lot of subtle headaches are avoided in the deployment process
Setting up the dev environment consists of running `vagrant up` (assuming Vagrant/Ansible are installed). That's it.
You get all the benefits of IaC (fast ~reproducible dev) without shoehorning containers in.