It’s clearly a personal pet project where they’ve heavily leaned, hard, into some creative ways to present traditional documents.

We all complain about dull corporate themes and walled gardens making the web stale. But you can’t have a creative fun web without having the odd site that breaks some readability conventions.

Personally, I’d rather see more personal sites like this and fewer stuff on Medium or using boring React/Vue/whatever themes. But each to their own.