For years, I have written most documents that end up as a PDF (proposals, contracts, datasheets, essays, etc.) in LibreOffice Writer (Microsoft Word is the more common choice). This has worked well enough, and support for variables allows a little templating. Recently, I have been experimenting with Markdown and Typst, and the results have been better than I expected. Typst is a new tool that can generate professional-looking documents from a relatively simple markup language (think LaTeX, but much easier). Claude can quickly generate a Typst template for almost any type of document, plus a script that generates the PDF from input data in Markdown, YAML, CSV, etc.
This is a companion discussion topic for the original entry at https://bec-systems.com/blog/0359-markdown-and-typst-replaced-my-word-processor/