Markdown, Quardown, Typst, this and that. This looks to LaTeX. All of this became so confusing and un-standardized - I went back to HTML+CSS.
I haven't really tried writing large pieces of text in it but I am already seriously considering. All other alternatives are too complicated and have a learning curve that gets in the way of writing itself. With XML, I'd be able to define my own tags and run them by a parser later on to auto-generate indexable footnotes, and create my own ways of structuring text besides the usual ones (chapters, sections, etcetera). Has anyone tried this approach?