This site is extremely sparse on information. I know what a unikernel is but it's not clear how it reduces cloud spending other than perhaps a small reduction i

This site is extremely sparse on information. I know what a unikernel is but it's not clear how it reduces cloud spending other than perhaps a small reduction in overhead. I'd like to know what kind of work would be needed to make a traditional app run under this unikernel. Assuming it is a genuine unikernel and this isn't marketing.