Following the first STACK Conference to be held in Africa, David and Kate reflect on what the event revealed about IDEMS’ vision for open textbooks. They discuss growing interest in adapting the approach across different African contexts, and explore the importance of local ownership, collaboration, and working with existing education systems to bring open resources to scale. They also consider how bringing together experiences from high- and low-resource settings can spark new ideas and create opportunities for innovation that flow in both directions.