Apparently unikernel images can be as small as 200KB.<p><a href="http:&#x2F;&#x2F;blog.acolyer.org&#x2F;2015&#x2F;01&#x2F;13&#x2F;unikernels-library-operating-systems-for-the-cloud&#x2F;" rel="nofollow">http:&#x2F;&#x2F;blog.acolyer.org&#x2F;2015&#x2F;01&#x2F;13&#x2F;unikernels-library-operat...</a><p>That might be only for niche cases, though, but others seem to say it can be under 5MB for more general uses, too:<p><a href="http:&#x2F;&#x2F;www.techrepublic.com&#x2F;article&#x2F;unikernels-offer-a-stripped-down-alternative-to-linux&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.techrepublic.com&#x2F;article&#x2F;unikernels-offer-a-strip...</a><p>This is a nice talk on unikernels:<p><a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=oHcHTFleNtg" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=oHcHTFleNtg</a>