In this article we conceive of the Open Master, a new form of Transnational Education, as a means of enhancing accessibility to specialist expertise in Quantum Technology. Through participatory action research conducted during the setup and operation of a pan-European pilot project, the QTEdu Open Master (QTOM), we examine the viability of this educational model to offer flexible learning opportunities to STEM Master’s students through the setup and year-long operation of an online course exchange platform. A crucial lynchpin in the Open Master model are the mechanisms of local accreditation available for the awarding of credit, which we divide into distinct course types varying in formality and applicability. Furthermore, we have elucidated the strategies taken by staff to successfully implement the Open Master and benefit from its transformative value, building long-lasting communities within and between faculty, and scaling up educational offerings across Europe. With this research, we reflect on a possible future for QT Education.