I just compared typst with peachpdf (c#) and others to generate big reports, invoices, etc. coming from itext 4 the open source version which was lgpl. And was blown away. Itext was quite efficient because layouting did not do a full css thingy. Which peachpdf does, which of course produces a better looking pdf. But full css eval, could byte your ass with flow elements and div wrappers. You can be extremely non performant and ram hogging pretty fast, especially since peachpdf is not optimized.
However typst? God , it is so fast that downloading and rendering it inside a pdf viewer is the new bottleneck… it generates 2000 page pdfs in second with maximum of 2 gb , however most of the time it used 250mb memory. Peachpdf used 15-30gb for that, heck even itext used 4 gb. Cpu everything was so fucking fast, even while going through p/invoke.
I just fucking love it. I mean sometimes the syntax is weird, but it’s the best layout+data to pdf renderer.