DOI: https://doi.org/10.59350/dxdqq-e4n18 Invited ignition talk at the Leibniz Research Alliance OpenScience research symposium “Open Practices IN Education (OPINE)”, November 14-15, 2019, Frankfurt/Main (Germany). Slides: Links: symposium abstracts available online on Zenodo extended bibliography, see the open library at Zotero Abstract Today, and more than ever, “Open” is en vogue and yum! – a generously-applied