This letter proposes creating a network of open source pioneers to change mobility across Europe. It notes that innovation processes and support schemes need to change to keep up with rapidly changing innovations. Recent major innovations that changed mobility, like Uber and Blablacar, came from unknown entrepreneurs without business models. The letter proposes that each stakeholder receive contextualized help to align dynamics and support entrepreneurs. Four organizations are investing in open source fields to change mobility and the letter invites other private or public stakeholders to join this pioneering network. It also suggests the European Commission could play a role in catalyzing the network and leveraging open source.