This appears to be SmartOS[0] with lots of automation around it[1]. I for one think it's exciting. The screenshots on the main page and the architecture overview diagram[2] were helpful to get an idea of what this really is. Going through the user guide, I see some exciting features that add to the SmartOS platform. Most of the documentation references using the legacy illumos KVM port for the VMs, but there is actually a section of the documentation devoted to converting these to bhyve[3] - that's pretty cool.
[0] https://www.joyent.com/smartos
[1] https://danubecloud.org/
[2] https://docs.danubecloud.org/user-guide/esdc/overview.html
[3] https://docs.danubecloud.org/user-guide/howto/convert-kvm-to...