&gt; But some events, even with stateless services, need in-production, live, interactive debugging in order to be understood.<p>The question then becomes if it is reproducible since &quot;debuggable when not running normally&quot; seems to be the common thread of unikernels, such as being able to host the runtime in Linux directly rather than on a VM.<p>I think it if you try a low level language these kinds of things are going to bite you, but a fleshed out unikernel implementation could be interesting for high level languages, since they typically don&#x27;t require the low level debugging steps in the actual production environment.<p>In either case unikernels have a lot of ground to cover before they can be considered for production.