Typst is great. I think they'll catch up to LuaTeX in terms of typographic quality in near future. But Typst is for typesetting; it's essentially a programming language for layout. If you compare it to e.g. Asciidoc, the latter is for content and semantics. We need both. But Asciidoc has unneccessary complexity and ambiguity, and the results are often surprising. So I made an unambiguous, deterministic subset of Asciidoc which I now use for most of my specs and which can be parsed by a single recursive descent parser and generate Typst. It's still work in progress, but if anyone is interested, here is the link: https://github.com/rochus-keller/leandoc/.