[amai]

But the feature I'm talking about comes out of the box. One just writes

\documentclass[twoside]{article}

\pagestyle{headings}

in LaTeX. And this also does the right thing on special pages like table of content, appendix, bibliography etc.

Implementing all that in Typst is quite a hassle.

[delta_p_delta_x]

The 'La' in 'LaTeX' stands for 'Lamport'. Leslie Lamport set up additional macros atop the base TeX language to make life easier. To this day LaTeX code can still be compiled with `pdftex` (note, no 'la' there).

The `article` document class is actually some `article.cls` file that resides somewhere in your TeX install root, is loaded, and implements macros such as `/title`, `/section`, `subsection`, and so on. All LaTeX eventually expands into a pile of TeX macros that are evaluated.

All this is to say... LaTeX comes with the templates, you've been using one all this while.

[amai]

So I think Typst should come with a few default templates like Latex to make writing easier for beginners.