Dotnetconf URL not working

In the " Remote Computer Science with Pi-Top smart rover , .NET interactive Microsoft Bot & Microsoft Teams" it lists this URL: but get a 404 PAGE NOT FOUND error, has this URL moved somewhere else? I’m big into Microsoft Teams, so thinking this would be a great way to try to link the two.

@rsun that page has been removed as it was a competition sign-up, you can try this one but I think most of the links and resources are already on that page you just linked.

Let me know if you need any help navigating the resources!