Earlier quoted context omitted.
Hugo ( https://gohugo.io ) maybe? I tried it for a small static site about internal documentation, and I'm very glad I did. The hardest part was reading the documentation, the installation, content generation and rebuilds were painless.
The hardest part of Hugo for me was creating my theme from scratch (docs are eh on this but I found some good 3rd party tutorials) but after that it's been an absolute breeze. After spending a little time understanding Go templating it is really beautiful
Also figuring out the variable structure took me a bit, but now the docs make sense to me.
My theme is super simple. A few templates, 1 CSS file, and a tiny amount of vanilla JS. I just let Hugo + CSS do most of the lifting.
I think some folks have had bad experiences with themes that layer a JS framework on Hugo, though. That may be a better case for a completely JS ecosystem.
There’s a lot of good options. That’s a good problem to have. Just use what you like, I guess.