It is mentioned in passing though, with a link to its website: > It is widely adopted by various typesetting engines like TeX, SILE[1] and Typst, etc. > [1] h

It is mentioned in passing though, with a link to its website: > It is widely adopted by various typesetting engines like TeX, SILE[1] and Typst, etc. > [1] https://sile-typesetter.org/ https://sile-typesetter.org/