Could you make the post-processor token optional?

[Ben van B]

Note: This configuration includes a post-processor that pushes the built box to Vagrant Cloud (which requires a VAGRANT_CLOUD_TOKEN environment variable to be set); remove the vagrant-cloud post-processor from the Packer template to build the box locally and not push it to Vagrant Cloud. You don't need to specify a version variable either, if not using the vagrant-cloud post-processor.

[Jeff Geerling]

This project is deprecated as things are being consolidated into https://github.com/geerlingguy/packer-boxes; see issue: geerlingguy/packer-boxes#45