GEMINI (Greening European Mobility through cascading innovation INItiatives) is a Horizon Europe initiative led by UEMI, involving 43 partners over 42 months. It aims to accelerate climate-neutral urban transport by developing and testing sustainable business models and digital platforms for new shared mobility services, including MaaS, micromobility, and active transport, across Mobility Living Labs and twinning cities. Through co-creation with stakeholders, pilot implementations, and policy recommendations, GEMINI is driving affordable, interconnected, and inclusive shared mobility solutions across European cities.