!qol(restructure): heavy restructure

modules/greetd/default.nix

@@ -0,0 +1,4 @@
+_: {
+  # home = ./home.nix;
+  nixos = ./nixos.nix;
+}

modules/greetd/nixos.nix

@@ -0,0 +1,36 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+let
+  cfg = config.modules.greetd;
+  tuigreet = "${pkgs.tuigreet}/bin/tuigreet";
+in
+{
+  options.modules.greetd = {
+    enable = lib.mkEnableOption "Greetd configuration module";
+  };
+  config = lib.mkIf cfg.enable {
+    services.greetd = {
+      enable = true;
+      settings = {
+        default_session = {
+          command = "${tuigreet} --time --remember --cmd Hyprland";
+          user = "greeter";
+        };
+      };
+    };
+    systemd.services.greetd.serviceConfig = {
+      Type = "idle";
+      StandardInput = "tty";
+      StandardOutput = "tty";
+      StandardError = "journal";
+
+      TTYReset = true;
+      TTYVHangup = true;
+      TTYVTDisallocate = true;
+    };
+  };
+}