Lublin is a city of young and active people with its 75,000-strong student community, including over 6500 foreign students and 9 universities. Mobility in the City of Lublin is an extremely complex phenomenon requiring an approach based on integrated solutions that combine competence in the field of technology, strategic design, but also the social aspect. The input of the city of Lublin for the Citython edition in Lublin will be to define the challenge, to support TUM with finding jury members and speakers, to organize the external services, and to develop a follow-up plan for working with the winners of Citython Lublin 2021.