[kostarelo]

GitHub is not managed by you and by hosting a static site on GH Pages, you really have no server. The CMS that the auhor refers to is a frontend client-based library that you include in your static site code and communicates directly with GitHub to manage your content. It's a UI for GitHub.

[diminish]

you can use WordPress API at WordPress.com or elsewhere if "no server" means "not my server".

and where do you put the status site code?

[kostarelo]

Exactly and this is the purpose of a static site generator. The content is not related to the actual site representation. In the case of the WP, instead of storing the content in GitHub and generating a site to be hosted on GH Pages, you are storing the content in a WP server and generating a site to be hosted somewhere else.

[kostarelo]

What do you mean by status site code?

[diminish]

sorry meant "static site code"