Titles of some sections include {-} to make sure they are unnumbered when the book is rendered in PDF format (the {-} is not shown). When rendered in HTML, the {-} appear in the title, and is included as such as the title of the section. I see two ways of doing this:
Find out a way of specifying unnumbered sections that is consistent across formats
Conditionally selecting different .qmd files to be rendered depending on the output format (e.g., chapter1_html.qmd and chapter1_pdf.qmd. While this seems feasible for chapters per se, it is not possible to the same with the mandatory index.qmd files, as it must be named that way across all formats.
Titles of some sections include
{-}to make sure they are unnumbered when the book is rendered in PDF format (the{-}is not shown). When rendered in HTML, the{-}appear in the title, and is included as such as the title of the section. I see two ways of doing this:chapter1_html.qmdandchapter1_pdf.qmd. While this seems feasible for chapters per se, it is not possible to the same with the mandatoryindex.qmdfiles, as it must be named that way across all formats.