Robert Carrubba is a photographer and filmmaker based in Bukavu, DRC. He visually documented the men, women and children working in the supply chain of gravel, sand, bricks and cement around Bukavu. The text is written by Lilian Nabintu Kabagale, Divin-Luc Bikubanya and Sara Geenen. Financial support was given by VLIR-UOS and by USOS, the University Foundation for Development Cooperation at the University of Antwerp.