In a general aspect, a computer-implemented method can include receiving, by a device including a plurality of functional elements, an indication of a service to be implemented by the device. The method can also include determining one or more functional elements of the device that are needed to implement the service. The one or more functional elements needed to implement the service can be a subset of the plurality of functional elements of the device. The method can further include initializing the device by activating the one or more functional elements needed to implement the service.