How to customise the styling of em-dashes in Typst

Typst is a modern, markup-based typesetting system designed as a successor to LaTeX. If you need to produce PDFs — particularly for academic or technical writing — then it’s an invaluable tool. Writing in Typst is much like writing in Markdown: you write primarily in plain-text, adding lightweight markup only when you need it — _italics_, *bold text*, that sort of thing. It stays out of your way…