I see from #41 that the PDF used to come with links to solutions. However, the PDF seems not only solution-free, but also free of links to solutions. <img width="584" alt="Image" src="https://github.com/user-attachments/assets/e12df1d9-9b08-487a-8d06-6cf4de9cad6e" /> FWIW I built it with `yarn pdf` from commit 781eebb13ebce000ec4132b6e1af3747c23fd067.
