In 2016 the former Dutch minister of Education shared ambitions. Amongst those: in 2025 all teachers in Dutch HE share and reuse educational resources among each other. In 2017, two flagship projects were started (one around a shared educational profile of – as a start- 5 out of 17 Dutch Bachelor of Nursing universities, and one around first year mathematics interfaculty education in the 4 Dutch Technical Universities) to explore what it would take to develop a culture of sharing among cross institutional communities of teachers. The goal of the communities would be to help accelerating the adoption of open education in Dutch HE. In the end, resources shared among the communities, plus having a stronger community will support the use and reuse of the shared educational resources among teaching staff and lead to integration of these resources in educational practice on micro level in a sustainable way. Hence, the flagship projects pave the way to transform education through open approaches. In the proposed panel session we would like to discuss the approaches taken in both flagship projects, to inspire other institutions and learn from the input shared by our session participants. The panel consists of the project leaders and one lecturer from each institution. We will ask input from the session participants on questions like: what is needed to build and maintain communities? What kind of activities would a community have to offer in order to help their members share their educational resources? Specifically: how can the community enhance the reuse of material developed at a certain institution across other institutions?