For a long time I liked to have a homepage/blog:

1. With pages in Tufte style, so that I can include remarks and figures in the margin;
2. Exercises that have hidden, but clickable, hints and sotutions;
3. Written in org mode and emacs.

These links helped me starting.

1. https://parsec.ro/
2. https://github.com/ctanas/parsec-lisp
3. https://github.com/alhassy/org-special-block-extras

Here is some material that I should study at a later time:

1. https://ogbe.net/blog/emacs_org_static_site

To make this site, run on the prompt in the root directory of the site:

emacs --batch -l build-site.el