{
  config,
  lib,
  ...
}:
{
  ark = {
    files = [ "/etc/machine-id" ];
    directories = [ "/var/lib/systemd/coredump" ];
  };

  my.extraGroups = [ "systemd-journal" ];

  hm.systemd.user.startServices = "sd-switch";

  boot.initrd.systemd = {
    enable = true;
    network = {
      inherit (config.systemd.network) enable;
    };
  };

  services.journald.extraConfig = ''
    SystemMaxUse=5G
  '';

  systemd =
    let
      extraConfig = ''
        DefaultTimeoutStartSec=30s
        DefaultTimeoutStopSec=15s
      '';
    in
    {
      inherit extraConfig;
      user = {
        inherit extraConfig;
      };

      suppressedSystemUnits = lib.optionals config.nixfiles.modules.ark.enable [
        "systemd-machine-id-commit.service"
      ];
    };

  boot.initrd.systemd.suppressedUnits = lib.optionals config.nixfiles.modules.ark.enable [
    "systemd-machine-id-commit.service"
  ];

  environment.variables = {
    SYSTEMD_PAGERSECURE = "1";
    SYSTEMD_PAGER = "less";
    SYSTEMD_LESS = "FRSXMK";
  };
}