Educational institutions often waste significant resources rebuilding foundational course materials that already exist elsewhere. This session, led by Sander Renes (TU Delft), advocates for a strategic shift from isolated development toward a model of collaborative reuse powered by Open Educational Resources (OER) and the Grasple platform. By leveraging Grasple’s open ecosystem, educators can share and scale high-quality materials across institutions, drastically reducing the maintenance burden. Drawing on TU Delft’s experience and Grasple’s student engagement data, we demonstrate how structured overviews drive actual student interaction rather than just content production. We will also explore how new technologies make this transition seamless. Participants will learn how Grasple’s Content AI digitizes existing materials in seconds, while LLM-driven syllabus comparison identifies curriculum overlaps and gaps instantly. These tools ensure that adopting OER is a fast, intelligent process rather than an administrative hurdle, allowing educators to focus on pedagogical impact over manual content creation.