Over the last two decades a scholarly interest has increased in the participatory cultures of networked mobile use as the smart phone has become increasingly embroiled in urban activism and community mobilisation. Barns argues that this was an emergent form of platform urbanism, the term originating with her work. The contribution of urban informatics as providing more “fluid, mobile and networked imaginaries…” in understanding the makings of the smart city means that the user is not passive: “Engaging with platform services is today an integral part of being an urban citizen and as such involves many different kinds of value-sharing, not only the value extracted by technology companies.” (Barns 2019: 576). In what is referred to as an architecture of interaction, this ‘read-write urbanism’ recognises the agency generated through techno-social assemblages, or participatory cultures of networked mobile use.