What are some alternatives?
Jekyll - Jekyll is a simple, blog aware, static site generator.
GatsbyJS - Blazing-fast static site generator for React
Ghost - Ghost is a fully open source, adaptable platform for building and running a modern online publication. We power blogs, magazines and journalists from Zappos to Sky News.
Wintersmith - Flexible, minimalistic, multi-platform static site generator built on top of node.js
Hexo - A fast, simple & powerful blog framework, powered by Node.js
Nikola - Nikola is s static site generator tool written in Python.