PRObE aims to provide a world unique large-scale, low-level, and highly instrumentable systems research facility to the community. This is accomplished by re-purposing supercomputers that Los Alamos National Laboratory (LANL) decommissions and making them available to researchers. The goal of the PRObE facility is to further research in Operating Systems, Networking, Storage, Resiliency, and other relevant systems research topics. PRObE is governed by committees with people from the community, by the community.