Why the joking punctuation? With userspace filesystems it is easy to expose any tree like data as a filesystem. In fact, a while ago I made a (still readonly) filesystem for my browser bookmarks.
As long as I am on the topic of this, you know that you are in under explored territory where the first man page you visit for debugging your first non-trivial problem starts with "This is not the function you are interested in." (man getdents).
As long as I am on the topic of this, you know that you are in under explored territory where the first man page you visit for debugging your first non-trivial problem starts with "This is not the function you are interested in." (man getdents).