A system, process and device include reusable rack that supports a number of prefabricated modular housing units, each of the plurality of prefabricated modular housing units includes: a modular unit electrical subsystem; a modular unit potable water subsystem; a modular unit wastewater subsystem; and a modular unit docking connector coupled to the respective modular housing unit and coupled to each of the respective modular unit subsystems. The rack supports the plurality of prefabricated modular housing units. The rack includes: a rack electrical subsystem; a rack potable water subsystem; a rack wastewater subsystem; and a plurality of locations for supporting the plurality of modular housing units. Each of the plurality of locations including a respective rack docking connector coupled to the rack and coupled to each of the respective rack subsystems.