It's not pretty to look at, but it can be read, understood, and maintained by one person.
I recently evaluated migrating to Hugo to ditch my hastily written script & use a 'robust, mature' tool. I wanted to add an RSS feed and figured "why work more on my one off script, I could use a pre-built solution!" But migrating was indeed a pain in the butt, and it quickly became clear that writing a function to output an RSS feed was much faster than doing everything I needed to migrate.
Static blogs are very simple, and performance doesn't matter that much for all but the most prolific authors, and you can improve performance if needed. Write your own script!
Basically a variant of how:
works. Or:
https://chrisdiana.dev/cms.js/
In a similar vein (but not solely client hosted and managed) there's:
https://vuelog.js.org/#/page/about
If all you need is a blog, it's really just a bit of navigation you need js/<some program> to help with. And you can of course add things like commenting as a SaaS that's essentially just an imported cross side scripting attack on yourself, much like with visitor tracking via Google analytics etc. See for example muut.com for comments.