{
  config,
  lib,
  pkgs,
  ...
}:
let
  cfg = config.programs.direnv;
in
{
  programs.direnv.nix-direnv.enable = true;

  systemd.user = lib.mkIf cfg.enable (
    pkgs.personal.lib.homeManager.serviceWithTimer "direnv-clean-update" {
      Unit = {
        Description = "Remove old virtual environments and update the current ones";
        After = [ "network-online.target" ];
      };
      Service = {
        Type = "oneshot";
        ExecSearchPath = "${pkgs.coreutils}/bin:${pkgs.findutils}/bin:${pkgs.direnv}/bin:/bin/sh";
        WorkingDirectory = "${config.home.homeDirectory}";
        ExecStart = ''
          find -type d -name .direnv \
               -execdir nix flake update || true \; \
               -execdir /bin/sh -c "rm -f .direnv/{nix,flake}-profile*" \; \
               -execdir direnv exec . true \;
        '';
      };
      Timer = {
        Persistent = true;
        OnCalendar = "daily";
      };
      Install = {
        WantedBy = [ "default.target " ];
      };
    }
  );
}