diff --git a/examples/excalidraw/README.md b/examples/excalidraw/README.md
index 970610b..e98533b 100644
--- a/examples/excalidraw/README.md
+++ b/examples/excalidraw/README.md
@@ -1,3 +1,10 @@
 # References
 
-- https://github.com/excalidraw/excalidraw
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+- https://github.com/excalidraw/excalidraw
+
+# Notes
+
+Collaboration is not yet supported natively. You would have to also host an Excalidraw collaboration room:
+
+- https://github.com/excalidraw/excalidraw-room
+- https://github.com/excalidraw/excalidraw/issues/4993#issuecomment-1783669768
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