{ config, pkgs, lib, ... }: let cfg = config.programs.iftop; in { options = { programs.iftop.enable = lib.mkEnableOption "iftop + setcap wrapper"; }; config = lib.mkIf cfg.enable { environment.systemPackages = [ pkgs.iftop ]; security.wrappers.iftop = { owner = "root"; group = "root"; capabilities = "cap_net_raw+p"; source = "${pkgs.iftop}/bin/iftop"; }; }; }