specializedmiddlewareonnodesrunningaminimalµKernellikeOff++.In[3],wepointedout thatthisapproachcouldalsobeusedonlegacysystems(suchasUNIX)toprovideconvenient hostedenvironmentswithaperformancecomparabletonativeandspecializedsystems. Webuiltthekernelbyredesigninganoldprototype[2]withthehelpofdesignpatterns. Duringthe...