I recently came across Typst. It’s a typesetting software under active development that is designed to be as powerful as LaTeX while being much easier to learn and use. Features Free and open-source. 22,000+ Github stars: https://github.com/typst/typst
The one dealbreaker for me in Typst is the current lack of locale-aware decimal separators. The rest of it is so good that I've donated a couple times.
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