The technical solution that enables the possibility to turn a coworking space into a cloud provider is called: distributed cloud. It is based on an open source sofwtare called SlapOS that was created in 2010 and that is used in mission critical projets for companies such as Aide et Action, SANEF, Mitsubishi Group, Airbus, Kyorin, Sankei Chemical, etc.
With SlapOS, all computing resources are unified as if they were a single one, no matter where they are: office, coworking space, home, data center, etc. SlapOS is able to provision any service: VM, database, PaaS, CDN, etc. It also handled accounting, billing, payement and even CRM in a fully automated way.