In the meantime I chose Hugo, a static site generator written in Go. It is fast, flexible, and very easy to get started with. Plus, I really dislike installing software via pip, npm, or other language specific package managers. Hugo is distributed as a single statically linked binary without any dependencies, yay!
For hosting I went with Netlify. Netlify is platform for deploying static content to a CDN they operate. They offer 1-click SSL setup, continuous deployment, and a free tier. While S3/Cloudfront could easily serve the same purpose, you cannot beat the price of free and the platform saved me from dealing with scripting around AWS to get the same set of features. Easy Win.