In our last episode of season 3 (delayed due to scheduling issues), we are delighted to invite back Prof Peter Rijnbeek, Chair of Medical Informatics at Erasmus Medical Centre, Rotterdam, Coordinator of EHDEN, Director of the DARWIN EU Coordination Centre, and Lead for OHDSI Europe, who usually ends each season of this podcast. For this episode Peter reflects on the success of the OHDSI Europe symposium (24-26th June), held aboard the SS Rotterdam in the harbour and at Erasmus MC, with 350 registrants, 24 plenaries, 80 posters, a workshop and multiple OHDSI working group meetings. It was also an important timing post-COVID 19 lockdowns and was one of the first in-person OHDSI meetings, facilitating a return to networking and conversation not via video screens. The next symposium will be held in Rotterdam in June 2023, details will follow (keep an eye on the OHDSI Europe site). Peter outlined the work of his group at Erasmus, and video interviews with his Post-Docs were conducted late in 2022 and are very informative on the their work in federated learning, AI/ML and utilising OMOP-mapped datasets, within Work Package 3 of EHDEN (here). In EHDEN we have reached 187 Data Partners in 29 countries, and 64 SMEs in 22 countries, a new community that did not exist pre-EHDEN, and now a new phase in completing industrial mapping to the OMOP CDM, but importantly the evidence generation phase local and regional, with emerging collaboration, sub-networks and national nodes already emerging. In the conversation Peter outlines his own career development and the impact on his work focus and collaborations at Erasmus, in EHDEN and DARWIN EU, OHDSI Europe and Global. Using the experience also of the COVID-19 pandemic and the progress in EHDEN, we explore the advances and current challenges in the expansion of the use of the OMOP CDM, which is the glue in Peter's mind for the work we are all engaged in, and the post-ETL phase of using CDM-mapped datasets, iterating on tools, skills and methods and upskilling (via the EHDEN Academy). Needing high quality, rapid evidence, is a ubiquitous need, well characterised by the COVID-19 global public health emergency, where the opportunity for classical studies was limited. In the last part of the discussion Peter speaks to his vision for the future of EHDEN, the focus on scientific advice and services, as well as training, and his confidence in sustainability. Furthermore, continued work within OHDSI, and in DARWIN EU, all point to a remarkable opportunity for European open science research in health, also with transition from the IMI EHDEN to the not-for-profit EHDEN. The views expressed by the participants are personal and not necessarily reflective of their organisations. The Voice of EHDEN will return in March for season 4.