What are some alternatives?
Jekyll - Jekyll is a simple, blog aware, static site generator.
Hugo - Hugo is a general-purpose website framework for generating static web pages.
Grav - The modern open source flat-file CMS
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.
Pelican - A static site generator, written in Python, that requires no database or server-side logic
Metalsmith - An extremely simple, pluggable static site generator.