NexTArc is a European research and innovation project focused on developing trustworthy, energy-efficient, and resilient technologies for smart cities, mobility, logistics, and industrial applications. By leveraging open-source hardware and software architectures, advanced AI accelerators, secure processors, and cyber-physical systems, NexTArc aims to enhance the sustainability, connectivity, and security of urban and industrial environments. The project brings together innovations from chip level to digital services, supporting Europe’s vision for secure, efficient, and human-centric digital infrastructure.