$\Textit{Bifr ost}$ is a programming model for spatial networking that uses physical space as a boundary for private, robust, low-latency communication. It uses a big graph to represent both containment and connectivity, and enables policy scoping based on physical boundaries, device naming based on location, instantiating spatial services, and configuring spaces while maintaining local autonomy. $\textit{Bifr ost}$ enables a new class of spatially aware applications where co-located devices communicate directly, physical barriers require explicit gateways, and local control provides a bridge for global coordination.