{ pkgs, config, ... }:
{
  # This value determines the NixOS release with which your system is to be
  # compatible, in order to avoid breaking some software such as database servers.
  # You should change this only after NixOS release notes say you should.
  system.stateVersion = "19.09"; # Did you read the comment?

  services.unbound.enable = true;

  nix.gc.dates = "daily";
  nix.gc.options = "--delete-older-than 2d";

  # Setting the machine-id avoids to reencrypt all credentials
  # when reinstalling NixOS on a new drive.
  # Manually generated with : uuidgen | tr -d -
  environment.etc.machine-id.source = ./machine-id.clear;

  environment.systemPackages = with pkgs; [
    cryptsetup
    fio
    git
    gptfdisk
    #hey
    lm_sensors
    rsync
    socat
  ];
}