I run my blog with Lektor on Netlify (no affiliation with either, except I recently became a Lektor co-maintainer) and deploying literally gives me happy feelings. It's amazing to be able to just deploy your blog wherever you want, and Netlify have done a great job at being a deployment target.
I don't think it died, plus it's pretty feature-complete as is, I've never had difficulty doing anything. The upside is that it's much easier to use than Hugo, which I never managed to get running. I haven't played with many other alternatives, if anyone knows of a static site generator that isn't specifically blog-oriented (i.e. something with an agnostic model), please let me know.
Hugo is pretty agnostic for the content but is a pain to use imo. I'm working on Zola (https://www.getzola.org/) in order to have something simpler. It doesn't have all the features (eg multiple language sites) of Hugo yet but it's getting there. Working for things other than blog was very important, so you can implement something like gitbook in 3 small templates: https://zola-book.netlify.com/chapter1/ (source at https://github.com/getzola/book).
Even worse, the workaround of embedding a GitHub gist has a strange limitation of not being able to specify a particular file in the gist. So each code block needs to be a separate gist: https://stackoverflow.com/q/40809530/1481479