Here’s a quick installation video:
HubPress is currently very simple, allowing you to create and edit posts from the interface. It’s open source though, so it’s possible to extend it. The app uses Asciidoctor for editing posts and Handlebars for templating, so it should be able to use existing Handlebars-based themes. I’ll try and cover more details on those through separate videos.
You’ll also find extensive instructions at their repo: https://github.com/HubPress/hubpress.io
Have fun with it!