In reply to @nnsee "why does a project": I haven't written rust but ive seen a
lot of videos about it, but still take my word with salt:

Rust is a particularly bad choice in my opinion for writing fast performance
software that doesn't have complicated lifetime management where memory issues
are a real problem. for example, it makes no sense to write a scientific
simulation in Rust because it's always extremely obvious what's happening with
your data. I've written a full 3D rigidbody physics engine and other types of
physics sims and never have I faced the issues that software like applications
face with memory management.

Typst is basically a compiler, and it is not something that runs for a long
time, or needs complicated memory management. I don't think using Rust provides
significant advantages and overall likely contributed to its complexity when
compared to using a less restrictive language with simple manual memory
management