Quarto uses a headless browser behind the scenes to render
Mermaid and Graphviz diagrams
to PNG for print formats like PDF and DOCX. Until now, this meant installing Puppeteer-bundled Chromium via quarto install chromium — a setup that worked, but came with some rough edges.
This is a companion discussion topic for the original entry at https://opensource.posit.co/blog/2026-04-14_chrome-headless-shell/