In which we learn that the Emporium (the official shop for Discworld related products) is anti-AI :

"In this Artificial Intelligence-flooded  and art-theft riddled world it is increasingly important to celebrate those real artists, and pay tribute to the talented creatives that have helped us bring Discworld to life over the years."

And it's a good opportunity to learn a bit more about the artists behind the original products they create all year long to bring freshness to their shop.