The author wrote their PhD thesis using Typst, a modern typesetting language, instead of LaTeX. They found Typst to be faster and more comfortable to use, with a more consistent and well-designed language. However, they encountered some issues with bibliography management and debugging. The author concludes that Typst is a good choice for those who are willing to tweak and learn, but may not be suitable for everyone, especially those who want a system that works out of the box.