Note that error messages were not adapted, and only mention a generic "Ansible Software" when executed commands are failing. We assume that people using the `playbook_command` option are advanced users that will know all the components to be considered.
Vagrant Core Plugins
These are plugins that ship with Vagrant. Vagrant core uses its own plugin system to power a lot of the core pieces that ship with Vagrant. Each plugin will have its own README which explains its specific role.