Interesting blog written in org-mode, using https://github.com/bastibe/org-static-blog, written by Bastian Bechtold https://bastibe.de/
Some highlights:
https://jao.io/blog/eww-to-org.html convert HTML to orgdown
the links below probably need to be edited, removing the date
https://jao.io/blog/literate-programming.html literate programming
https://jao.io/blog/signel.html, a barebones signal chat on top of signal-cli, written in literate style
https://jao.io/blog/programmers-go-bananas.html category theory
https://jao.io/blog/dancers-at-the-end-of-time.html sounds like an interesting book.
https://jao.io/blog/geometrically-speaking.html geometric proofs, Kindergarten Quantum Mechanics
https://jao.io/blog/observatory.html Mozilla Observatory to check a website's security
https://jao.io/blog/simple-note-taking.html simple note taking