nixpkgs/nixos/modules/programs/iotop.nix

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

let
  cfg = config.programs.iotop;
in {
  options = {
    programs.iotop.enable = lib.mkEnableOption "iotop + setcap wrapper";
  };
  config = lib.mkIf cfg.enable {
    security.wrappers.iotop = {
      owner = "root";
      group = "root";
      capabilities = "cap_net_admin+p";
      source = "${pkgs.iotop}/bin/iotop";
    };
  };
}