diff --git a/systemd_notifier.rb b/systemd_notifier.rb
index 26aedcc..9182667 100644
--- a/systemd_notifier.rb
+++ b/systemd_notifier.rb
@@ -1,3 +1,17 @@
+# <<*>> -^v- SNOWARE APPLICATION
+# usage: Notify systemd.
+# author: S.A.
+# time: 2026-06-07
+# Copyright (c) [2026] [S.A. SNOWARE-SCU]
+# [MineSentinel] is licensed under Mulan PubL v2.
+# You can use this software according to the terms and conditions of the Mulan PubL v2.
+# You may obtain a copy of Mulan PubL v2 at:
+#          http://license.coscl.org.cn/MulanPubL-2.0
+# THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+# EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+# MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+# See the Mulan PubL v2 for more details.
+
 # frozen_string_literal: true
 
 class SystemdNotifier