This is a cache for builds of Mercury's open source projects.
Builds are uploaded by internal CI. Please file an issue on the relevant project if you have issues.
How to configure in nix.conf:
extra-substituters = https://cache.oss.mercury.com
extra-trusted-public-keys = cache.oss.mercury.com-1:COfsgEgHMrBhMvGoLWuNH5RDgub3/MT32n8kK50m2dc=