XenevaOS is an XR Native Open Source Operating System built on top of a custom kernel written from scratch. The kernel architecture has been designed with modern applications in mind such as XR(AR/VR), Robotics etc. The kernel currently has support for both x86_64 and ARM architecture and we have future plans for RISC-V implementation as well. The main motive of our custom kernel is to derive most optimal performance from minimal hardware resources thus laying an emphasis on efficiency.