{ config, lib, pkgs, ... }:

{
  nix.settings = {
    substituters = [
      "https://cache.kusanari.network/hydra"
    ];
    trusted-public-keys = [
      "hydra:aQij+np/Omz8vILwpvgz+gajP9KSjKe5kRNWwthI5gI="
    ];
  };

  environment.systemPackages = [ pkgs.attic ];
}