I have to push against this slightly.

HTML is human-readable and writer friendly. Humans - not even all of them CS students - were reading HTML,JS and CSS on websites and writing it all by hand in text editors for years before the "proper tooling" came along. It really isn't that difficult, especially if you're just dealing with simple websites, doubly so if you're on HN, you probably work with more complex languages on a regular basis.

If you really want to "learn and own a process" and be "100% independent" you should at least be able to understand and work with web languages natively.

Static site generators are nice (I use Nikola) and tools make things easier but but it's still dependency on third party tools if you don't understand or can't otherwise work with the output.