Rust

It's absolutely awesome. For my use case, it already surpasses latex, but I'm pretty sure that for other usecases there will be a point where latex offers more, at least due to ecosystem support. I for sure made the switch (wrote some personal docs in typst as well), and I'd suggest anybody at least looks into switching, it's so much better :)

From a dev perspective, it's also great that this is useable as a lib, instead of having to muck with an external binary (or rather full external latex installation).