So does it mean passing --cmd Hyprland > /dev/null to Tuigreet? If so then that wouldn’t work with my setup, as I use sessions instead of cmd. Here is how I have it in nixos

    services.greetd = {
      enable = true;
      settings = {
        default_session = {
          user = "greeter";
          command = ''
            ${getExe' pkgs.unstable.greetd.tuigreet "tuigreet"} \
            --time \
            --sessions ${cfg.sessionDirs} \
            --remember \
            --remember-session
          '';
        };
      };
    };

The sessionDirs is this

modules.services.greetd.sessionDirs = ["${hyprlandPackage}/share/wayland-sessions"];

This is a link to my dotfiles where I have it: