I didn't realize this, but #Zensical is from the same developer(s) as, and is apparently a continuation of, Material for MkDocs 👀

> We're putting significant effort into ensuring a smooth migration from Material for MkDocs for all users. Zensical can natively read mkdocs.yml, allowing you to build your existing project with minimal changes.

this is relevant to Surfhosting because the (skeleton of the) doc archive is built with Material for MkDocs.