In the meantime, a handful of organisations/individuals seem to be working on becoming "Docker for unikernels". That's probably an unfair description, but they're aiming to produce tools for building and managing unikernels: Unikraft [1], NanoVMs/Nanos [2], Unik [3]. Other orgs are producing unikernel-based OSs and VMs [4].
What is your toolset for building and managing unikernels? What have you learned?
Bonus question: is Unik dead? [5]
[0] https://hn.algolia.com/?dateRange=all&page=0&prefix=true&que...
[2] https://github.com/nanovms/nanos
[3] https://github.com/solo-io/unik/