VuePress is a feature-rich static site generator based on Vue.js
Vuepress was a breeze to work with so far. I used vuepress for two projects to far.
What is the most valuable thing, is that I can add custom elements in the middle of markdown and embed interactive snippets.
runs on web technology
easy to adapt
easily implement interactive UI in the middle of markdown
SEO and blogging support are not built in yet
No built-in metadata/opengraph/favicon support