https://github.com/kromiii/notion-to-slides
Visit my-integration page in your notion workspace.
Click the “New integration” button and decide your integration name (anything you want).
You may need to select the appropriate workspace if you have multiple workspaces.
Once you filled the form and submit, you can see your integration token.
Copy the integration token. You will use it in the next step.
In the page you want to convert (or its parent page), you should click connections and add your integration token.