diff --git a/radicale/sharing/none.py b/radicale/sharing/none.py
new file mode 100644
index 00000000..1264602a
--- /dev/null
+++ b/radicale/sharing/none.py
@@ -0,0 +1,38 @@
+# This file is part of Radicale Server - Calendar Server
+# Copyright © 2026-2026 Peter Bieringer <pb@bieringer.de>
+#
+# This library is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Radicale.  If not, see <http://www.gnu.org/licenses/>.
+
+from typing import Union
+
+from radicale import sharing
+from radicale.log import logger
+
+
+class Sharing(sharing.BaseSharing):
+
+    def init_database(self) -> bool:
+        """ dummy initialization """
+        return False
+
+    def get_sharing_collection_by_token(self, token: str) -> Union[dict, None]:
+        """ retrieve target and attributs by token """
+        # default
+        logger.debug("TRACE/sharing_by_token: 'none' cannot provide any map for token: %r", token)
+        return None
+
+    def get_sharing_collection_by_map(self, path) -> Union[dict, None]:
+        """ retrieve target and attributs by map """
+        logger.debug("TRACE/sharing_by_map: 'none' cannot provide any map for path: %r", path)
+        return {"mapped": False}