I thought that this option solved this problem? https://nixos.org/manual/nix/stable/command-ref/conf-file.html#conf-hashed-mirrors https://nixos.org/manual/nix/

I thought that this option solved this problem? https://nixos.org/manual/nix/stable/command-ref/conf-file.html#conf-hashed-mirrors https://nixos.org/manual/nix/stable/command-ref/conf-file.ht... But with the myriad of fetch* functions maybe it only applies to some.