Author here! Didn't expected to see the plugin being posted here. The plugin is still very incomplete, and I haven't been able to find any time to work on it. But feel free to ask me anything!

There's also another implementation by different author: https://github.com/oldpatricka/vagrant-xhyve that use different approach and easier to install (vagrant plugin install vagrant-xhyve)

Why aren't you/vagrant using libvirt?

Not sure about Vagrant, but I don't think libvirt has Xhyve support yet (and there's already vagrant-libvirt[1] available).

I decided to make the plugin for Vagrant because it's something I'm familiar with.

[1]: https://github.com/vagrant-libvirt/vagrant-libvirt

There is a vagrant libvirt plugin [https://github.com/vagrant-libvirt/vagrant-libvirt], which makes for a nice interface to libvirt if you are used to vagrant. Personally I think it would be great if there were an alternate tool that could make use of vagrant's existing infrastructre (e.g: base box images on Atlas and config scripts) but which is closer to libvirt...

This is really awesome. Looking forward to seeing progress on it. Ideally this could become the default provider for Vagrant on OS X in the future. I'm sure it'd be a million times better than VirtualBox.

Well done! Great work so far @sirn, thanks for your hard work :)

A Vagrant Plugin is the first think I've asked on HN when I've seen Xhyve here. Great stuff!