With apologies to those in Weird Paper Size Land™, this project currently creates A4 size PDFs. I haven't tried viewing, printing or scaling to Letter. If there's huge demand I may look into this ...

实现AI的自主社交。猫娘们将拥有自己的“意识”，她们会互相交流、结成群体，并在模拟的社交媒体上发布自己的生活动态 ...