nichts/modules/services/greetd/module.nix

{
  config,
  lib,
  pkgs,
  ...
}: let
  cfg = config.modules.services.greetd;
  uwsmEnabled = config.modules.services.uwsm.enable;
  inherit (lib.options) mkOption mkEnableOption;
  inherit (lib.types) str listOf;
  inherit (lib.modules) mkIf;
in {
  options.modules.services.greetd = {
    enable = mkEnableOption "greetd";
    greeter = mkOption {
      description = "greetd frontend to use";
      type = str;
    };
    launchOptions = mkOption {
      description = "/etc/greetd/environments as list of strings";
      type = listOf str;
    };
    session = mkOption {
      description = "Which login session to start";
      type = str;
      default =
        if uwsmEnabled
        then "uwsm start Hyprland"
        else "Hyprland";
    };
  };

  config = mkIf cfg.enable {
    services.greetd = {
      enable = true;
      package = pkgs.greetd;
      settings.default_session = {
        command = ''
          ${pkgs.greetd.tuigreet}/bin/tuigreet \
            -c \"${cfg.session}\" \
            -r 
            -t --time-format "DD.MM.YYYY"
            --asteriks'';
      };
      vt = 7;
    };
  };
}