With great memories we look back on a great edition of DOPS 2019! It was an honor to organize this conference and we are very happy with the result. We hope to see you again next year, to exchange new scientific ideas and to keep in touch with your colleagues from different cities. A new committee will be established in the coming months, if you are interested in organizing DOPS next year, please contact us. All attendees gave permission to publish photos, which will be uploaded soon.