I have opened access to a couple documents related to the recent rebuild of Foursquare's artifact cache. The design of the our topology is here: https://docs.google.com/document/d/1OJ0zSGWNgPAZbIuG66UtkYoY8a0T3yfW2aVMGveyrbE/edit#heading=h.zarr45ev0mlh The nginx.conf we are using is here: https://gist.github.com/mateor/4938d1cb521b19ef889e.