I'm completely biased as I work on the nanos/ops unikernel toolchain but unikernels offer a very PaaS like feel as the app and server become one. You simply bui

I'm completely biased as I work on the nanos/ops unikernel toolchain but unikernels offer a very PaaS like feel as the app and server become one. You simply build your image (ops image create) and then deploy it (ops instance create) - two commands. Takes tens of seconds to have something running on AWS. If you are on a AWS/GCP free tier it costs nothing but even a a g1-small costs only ~$20/month and a f1-micro goes for ~ $5/month which can go a long way. We've had a go unikernel be on the front page of HN on a f1-micro and it barely registered any resources being used. Besides the perf/security boost you aren't locked in to anything. You could take the same application and deploy it to multiple clouds simultaneously if you wanted to as it is making use of cloud primitives - nothing cloud-specific unlike some of the various serverless offerings.