This paper presents research into material design merging the structural logics of surface tectonics with computation. The research asks how the understanding and design of interactive systems changes as computation becomes an integrated part of our material surroundings. Rather than thinking the ubiquitous system as something that is embedded into the existing context of the built environment, this paper speculates on the design of bespoke materials specified and designed in respect to both their structural as well as their computational performance. The paper asks: what are the design practices that allow us to think of material as extending both in space (structure) and over time (actuation)? How can we imagine our surrounding environment as actively sensing and responding to our presences? How would it be to inhabit a live space?