Ditto, with https://github.com/jareware/howto/, which I’ve been meaning to automatically sync from a specific notebook from my Joplin. Yours looks very polished though, maybe I should just use that!
You could, the script is a bit tailored to me right now but very slightly. It just exports a Zola site and I used the Gitbook theme, but you should be able to easily swap in any theme you want.