[democat]

You are absolutely right. Thank you for pointing this out! Regarding your questions: 1. The `\pair` issue: This is definitely a bug. My macro expander is based on text replacement and obviously cannot handle nested parameters. I will fix the recursive logic. 2. The `fib` loop: Pandoc seems to use `typst-hs`, which contains a complete Typst evaluator. Tylax is strictly designed as a static AST transformer. We haven't implemented the Typst virtual machine, so loops or recursive functions cannot be executed. This will be gradually improved later to make it more usable; my claim of "better macro support" was clearly premature. This was a big mistake on my part, and we will strive to achieve this goal in future updates! Thank you very much for your feedback and for pointing out the bug!