Of-Labour Systems is a fictional narrative—albeit one that is merely a slight exaggeration of the spaces and cultures of work and fitness already present today, which value our voluntary exhaustion as a precious commodity. Eve, a young, eager millennial worker, is subject to a routine for better physicality in the context of a contemporary co-working space. The installation uses speculative objects, technologies, and social structures to explore the physical and ethical boundaries of fitness culture. Pragmatic office solutions that optimise the body’s capabilities are accompanied by a dogmatic script encouraging adherence to the social cult of fitness. Of-Labour Systems explores how designed changes in athletic behaviour generate new social and power relations, as well as how our fitness is being commodified against the background of our banal working routines.