Independent / open-source developer team, originally named “Rebelia,” now “YEAH.”

YEAH. (formerly Rebelia) is an open-source robotic hand project developed by Italian creator Vittorio Lumare, producing a dexterous, 3D-printable prosthetic and research hand under €2,000. OSHWA-certified and hosted as a Public Invention, the project targets researchers, developers, and prosthetics users seeking affordable alternatives to commercial dexterous manipulation hardware. The platform also supports industrial automation applications, contributing a low-cost, modifiable hand design to the broader robotics ecosystem.