Compony
An open source project built by and for the Drupal Frontend community. Supporting collaboration around separated, functional, fully independent, cutting-edge, Drupal Frontend components. (Blogpost: What is Compony?)
Download the kickstart-theme, and then pick your components you want to plug in to your theme.
Popular collections
Bare essentials

15 components
This is a collection of components that groups the most common for a Drupal 8 site
Popular Google fonts

10 components
The 10 most popular fonts from Google Fonts.
All of these font's have been downloaded and are not fetched using
Get involved
What feature would you like to see developed next for the platform? Vote for the feature you are waiting for, or come up with something new altogether.
Git repo of the theme skeleton and the Gulp setup.
The roadmap for the theme skeleton, the Gulp setup and the platform