common, frequently used definitions and user overrides shared across the q-tee library collection.
in the user.h file you can configure/override specific behavior across all sub-modules.
if you also want to control/override the configuration or behavior of a specific sub-module (library) using the macros it provides, consider adding it to a special user_other block in the aforementioned file.
you can read about installation, contributing and look for other general information on the q-tee main page.