Guma displaces infrastructure from the spectacular register of megaprojects and technological novelty toward the ordinary systems through which urban life actually persists. His central intervention is to oppose the “modern infrastructure ideal” with a plural account of integrated, hybrid and techno-popular arrangements that operate through incompleteness rather than despite it. Three analytical registers organise the argument: incomplete relationalities, mundane temporalities and heterogeneous modernities. Together they recast infrastructure as processual, contingent, maintained and embedded in broader social and ecological relations. The methodological operation is comparative and conceptual, drawing on eastern African cases to show how roads, kiosks, networks and improvised arrangements coexist, overlap and mutate through use. Maintenance, waiting, repetition and repair become epistemically consequential rather than residual. Guma’s wider contribution is to urban theory and STS: he provides a vocabulary for analysing infrastructures that are neither failed versions of an ideal system nor temporary anomalies, but ordinary socio-technical conditions through which urban worlds are continuously composed.