XLeRobot: Building an Open-Source Dual-Arm Mobile Robot for Everyone

XLeRobot is a fully open-source dual-arm mobile robot for household tasks, costing $660 in parts and under 4 hours to assemble. It combines SO-101 arms, a Lekiwi base, and an IKEA cart on top of the Hugging Face LeRobot ecosystem. Since launching in May 2025, it has reached 4.8k+ GitHub stars and a community of 6,000+ builders worldwide.
I will share how XLeRobot grew from a PhD side project on robust manipulation into a widely adopted platform, covering the design philosophy, how it gained traction with zero promotion, and how the community has extended it in unexpected ways, from university research testbeds to third-party assembly kits to academic papers adding onboard compute.
I will also reflect on the real strengths and limitations of open-source robotics, and discuss the evolving landscape: modern middleware like DORA that offers a low-latency alternative to ROS, and NVIDIA's open Physical AI stack (Isaac GR00T, Newton, Cosmos) now integrating directly into LeRobot, closing the gap between research-grade and hobby-grade platforms faster than ever.