quarto-dev/quarto-cli ? reverse-engineered prompt

Build me a Quarto style publishing tool that lets me write technical documents in plain Markdown and turn them into nice looking outputs like websites, books, and reports.

I want it to support things like code blocks with runnable output, cross references, citations, callouts, footnotes, and layout options that make long documents easier to read. It should work well for people writing with Python, R, Julia, and JavaScript examples, and it should fit into common workflows like VS Code and Jupyter. Also include a project mode so multiple documents can share settings and be rendered together.

Make the experience feel polished, with a good command line workflow, clear docs, and a visual editing option if that makes sense. If you need to check current behavior or docs online, go ahead and look them up first.