*So* much has happened - and *so* much still needs to happen! What is the "Open" answer to the platform monopolism of Elsevier and Co, to DEAL negotiations, but also to the climate crisis and poor working conditions in the lab? (#IchbinHanna and #IchbinReyhan, anyone?) Barcamp Open Science 2023 offers no ready answers, but inspiration, activists, and the space to find answers, together. Free registration starts today - we look forward to seeing you in Berlin! #oscibar https://barcamp-open-science.eu