{
  config,
  lib,
  ...
}:
with lib;
with lib.metacfg;
let
  cfg = config.metacfg.system.noSleep;
in
{
  options.metacfg.system.noSleep = with types; {
    enable = mkBoolOpt false "Whether or not to disable all sleep targets.";
    disableGdmAutoSuspend = mkBoolOpt false "Disable GDM auto-suspend.";
    ignoreLidSwitch = mkBoolOpt false "Ignore lid switch events.";
  };

  config = mkIf cfg.enable {
    systemd.targets.sleep.enable = false;
    systemd.targets.suspend.enable = false;
    systemd.targets.hibernate.enable = false;
    systemd.targets.hybrid-sleep.enable = false;

    services.displayManager.gdm.autoSuspend = mkIf cfg.disableGdmAutoSuspend false;

    services.logind.settings.Login.HandleLidSwitch = mkIf cfg.ignoreLidSwitch "ignore";
  };
}