diff --git a/calendars.md b/calendars.md
index f51ddf3..1229fad 100644
--- a/calendars.md
+++ b/calendars.md
@@ -25,3 +25,8 @@
 3. Choose the **CalDAV** option, paste the private link from the first step in the **Location** text field (leave the username blank) and press the **Next** button
   ![A dialog to 'Create a new calendar' showing four radio buttons, the second one, 'CalDAV', is selected, and a URL is present in a text field labeled 'Location'.](images/thunderbird-add-nextcloud-calendar.png)
 4. Give your calendar a name, sticking to the name used in NextCloud to the extent practical, and save the dialog, and you're done!
+
+
+```{tip}
+Members of Agaric can share their private calendar links to the [internal Agaric wiki](https://gitlab.com/agaric/internal/-/wikis/calendars ).
+```