#!nix
{ pkgs, lib, ... }:
{
  users.users.root.openssh.authorizedKeys.keys = [
    "ssh-rsa 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"
  ];

  nix = {
    buildCores = 48;
    useSandbox = true; # necessary?
    nixPath = [
      "nixpkgs=https://github.com/johanot/nixpkgs/archive/f23157af7f3bb8c0887d73d0f6e7fbde7bd6bd86.tar.gz"
      # nixosconfig?
    ];
  };

  environment.noXlibs = true;
  services.fail2ban.enable = true;
  services = {
    fail2ban.enable = true;
    openssh = {
      enable = true;
      passwordAuthentication = false;
    };
    kubernetes = {
      roles = [ "master" "node" ];
    };
}