Forget it, this module is "flawless".. relatively to a majority of module you can find in codebases. It's tiny, has less than 5 global vars, a few private functions and a few public ones. 100 LoC.

A few years ago I checked out the most used wordpress plugin for social network buttons, it was 4, if not 8 I lost track, pages of imperative loops over god knows how many mutable globals and 3 level deep adhoc dicts.