There's now basic documentation for my "foreign Wiki interface", which I renamed to "hyperbook interface" because "Wiki" implies editability, which is not what I provide. I spent some time for an accepted term meaning "a collection of interlinked and somehow related hypertext pages" but found none, so I made up "hyperbook".

I found some nice applications for my new abstraction layer immediately. For example, hyperbooks standing for "all functions in my Lisp image", making it possible to link to a function. Quite nice for software documentation, as you can see here, for example.