SierraX/openbsd-snapshot Vagrant box

How to use this box with Vagrant: 

Vagrant.configure("2") do |config|
  config.vm.box = "SierraX/openbsd-snapshot"
  config.vm.box_version = "2018.05.09"
end
vagrant init SierraX/openbsd-snapshot \
  --box-version 2018.05.09
vagrant up

v2018.05.09

This version was created about 6 years ago. 

OpenBSD 6.3-current (GENERIC.MP)  #38: Wed May  9 17:38:06 MDT 2018

Example Vagrantfile - in the how to use this box with Vagrant-Box the config.ssh.sudo_command is missing.

2 providers for this version.
  • virtualbox
    unknown Hosted by Vagrant Cloud (470 MB)
  • vmware_desktop
    unknown Hosted by Vagrant Cloud (433 MB)