What is a "librarianaut"?

A librarianaut is one well versed in the ways of the library.
A librarianaut can be your guide when traversing vast oceans and continents of information.
A librarianaut, like an astronaut, is a traveler and adventurer; a thrill seeker unable to be sated with mundane life.

I confess.

I made up the word.

But it fits.