The MIX-UP consortium has come together for the 6th General Assembly in Madrid at the facilities of our partner CSIC. From February 14 to 16, presentations were given, intense exchange about the progress of research took place and Madrid was explored. Apart from the presentations in the lecture hall at CSIC, the consortium also visited the labs and held an interactive poster session to get the most out of the event. The meeting was a great success marked by innovative ideas and lively discussions. Even the Chinese partners were assembled in a conference room in China and joined the European partners in Madrid via Zoom. We are already looking forward to the next meeting in 2023. Next time we plan to meet in China with as many partners as possible.