How to use Magento 2’s built in Vagrant box?

It's a virtual machine for ZF1 unit testing and library development.

The package "magento/zendframework1" is based on ZendFramework1 code source . The Vagrantfile is included into zf1 for development using a virtual machine

I am not sure, that Vagrant file in zend framework will deal with magento.

I would advice to try AlexP's Vagrant project for Magento 2 developers (optimized for Mac, Windows and nix hosts), which is implemented for magento2 developers. I use it on day by day basis.