Thanks for the pointers, I tried them both. Gostatic is super simple, but probably too simple. It's quite a step up in power from Bearclaw, and has all the parts to be able to make a good blog, but the parts are all pretty basic and if you want anything very fancy you're going to have to custom build it. Think "main page is <ul> of page titles and date". Also didn't seem to have a way to specify a base URL so everything needed to be at "/" in the resulting site, a little tricky for testing.

Zola looks like a good fit, almost as simple as gostatic, but with a lot of templates (though many kind of stale, many I couldn't get working, but I think the template largely dictates the install, so switching between themes really is a bit of work).

Hexo looks like the quickest way to a fancy looking site, though it is more effort than Zola. I'd lean towards Zola.