In package repositories for Debian, Fedora etc? As this library has only just been open sourced it hasn't been added to Debian yet but may one day appear here: https://packages.debian.org/search?keywords=icer
Something like glib2 or boost maybe? They have lots of separate modules (or at least you can pick and choose which bits to use and what to ignore), but (especially glib) form a single library with a fairly consistent style.