I've been using Pelican¹ with m.css², it does math, sitemaps, RSS feeds, code, graphs and a lot other things very nicely for me. Other blog platforms are far from as powerful, what I've tried, with so little hassle.

[1]: https://docs.getpelican.com/

[2]: https://mcss.mosra.cz/

(Not OP)Shameless plug: Please take a look at Wemebox CMS https://wemebox.com. I created this because I wanted a dead simple CMS for the websites I create for my clients.I believe it is much simpler than Hugo. Will be open sourcing the source code in a couple of months.

(Not OP) I've been using Jekyll [0] for my personal homepage [1], and I'm very happy with it.

[0] https://jekyllrb.com/

[1] http://accaputo.ch

I have been using Hexo for quite some time and it's very easy to use and setup. It's the node alternative to Hugo which uses Go.

nanoc with asciidoctor filter. I've also used pelican and Jekyll in the past, and they worked pretty well too.