It depends. For some things, when it gets really technical, I use LaTeX, and I use TeXShop as an editor. It has a nice side-by-side view of the source code and

It depends. For some things, when it gets really technical, I use LaTeX, and I use TeXShop as an editor. It has a nice side-by-side view of the source code and the generated PDF. For an intranet, something like Atlassian Confluence does the trick (with LucidCharts for complex graphics). Public web-based consumption, a markdown doc on github usually does the trick, unless you need something fancy, in that case, you kind of need to fall back to HTML. I've played a bit with Jupyter notebooks, but I haven't done anything serious with it. I need to look at https://github.com/jupyterlite/jupyterlite https://github.com/jupyterlite/jupyterlite for complex embeddings.