GravCMS - Installing and understanding HAX and Webcomponents plugins
This video talks through GravCMS and installing the webcomponents plugin via the UI. Then it talks about how you would install HAX via the UI but I actually install via command-line since it hasn't been added to package manager as of this writing. This video also talks through what are webcomponents and makes the case for why HAX will transform content authoring not only in GravCMS but on the web at large as we've disconnected complex authoring from the CMS and freed it to the front-end to handle.
Check out the other videos in the haxtheweb playlist for examples of HAX installation and running in Drupal, Backdrop and other systems!