The Dutch Ministry of Education has developed the testing system Facet. With Facet, we did 1.2 million deliveries in 2017, both summative high stake exams and diagnostic tests. We now focus on the next steps. Can we use the core of Facet as a National Open Source testing infrastructure? Can we use Facet effectively and also comply to the latest privacy regulations? Can we use Facet to enhance the use of open standards in education?