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@@ -111,3 +111,4 @@ replace the logo with that of your own school or organisation.
 
 The Dutch original of this series is at https://git.lexconsultancy.nl/guido/dify-handleidingen.
 The same apps built in Microsoft 365 Copilot (Agent Builder, Dutch): https://git.lexconsultancy.nl/guido/copilot-handleidingen
+The same apps built as Custom GPTs in ChatGPT (Dutch): https://git.lexconsultancy.nl/guido/chatgpt-handleidingen