https://bagel-cache.s3-web.delroth.net/ provides
prebuilt binaries for Nixpkgs and NixOS. It is
used automatically by the Nix package manager to
speed up builds.
(it's also not sponsored by Peter Thiel)
If you are having trouble, please do not reach out to anyone yet because that's completely expected right now.
For questions, or support, ask a friend.