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{
  config,
  lib,
  pkgs,
  inputs,
  ...
}:
with lib; let
  cfg = config.nixfiles.modules.nmap;
in {
  options.nixfiles.modules.nmap.enable = mkEnableOption "Nmap";

  config = mkIf cfg.enable {
    nixfiles.modules.common.shell.aliases = {
      nmap-vulners = "nmap -sV --script=vulners/vulners.nse";
      nmap-vulscan = "nmap -sV --script=vulscan/vulscan.nse";
    };

    hm = {
      home = {
        file = {
          ".nmap/scripts/vulners".source = inputs.nmap-vulners;
          ".nmap/scripts/vulscan/vulscan.nse".source = "${inputs.nmap-vulscan}/vulscan.nse";
        };

        packages = with pkgs; [nmap nmap-formatter];

        activation.regenerateNmapScripts = with pkgs; ''
          ${getExe' nmap "nmap"} --script-updatedb
        '';
      };

      systemd.user = {
        services.update-nmap-vulscan-lists = {
          Service = {
            ExecStart = getExe (pkgs.writeShellApplication {
              name = "update-nmap-vulscan-lists";
              runtimeInputs = [pkgs.curl];
              text = ''
                declare -a vulscandbs=(
                  "cve"
                  "exploitdb"
                  "openvas"
                  "osvdb"
                  "scipvuldb"
                  "securityfocus"
                  "securitytracker"
                  "xforce"
                )
                for i in "''${vulscandbs[@]}"; do
                  curl \
                    -o "${config.my.home}/.nmap/scripts/vulscan/$i.csv" \
                    "https://www.computec.ch/projekte/vulscan/download/$i.csv"
                done
              '';
            });
          };
        };

        timers.update-nmap-vulscan-lists = {
          # TODO Figure out how to check for network-online.target for user
          # timers.
          Timer = {
            OnCalendar = "daily";
            Persistent = true;
            Unit = "update-nmap-vulscan-lists.service";
          };
          Install.WantedBy = ["timers.target"];
        };
      };
    };
  };
}