{ pkgs, ... }:
{
  programs.nix-index = {
    enable = true;
    enableBashIntegration = true;
    enableZshIntegration = true;
  };

  systemd.user = {
    services."nix-index" = {
      Unit = {
        Description = "Update the nix-locate database";
        After = [ "network.target" ];
      };
      Install = {
        WantedBy = [ "default.target" ];
      };
      Service = {
        Type = "oneshot";
        ExecStart = "${pkgs.nix-index}/bin/nix-index";
      };
    };

    timers."nix-index" = {
      Unit.Description = "Update the nix-locate database";
      Time = { OnCalendar = "weekly"; Persistent = true; };
      Install.WantedBy = [ "timers.target" ];
    };
  };
}