$ sudo apt-get update
$ sudo apt-get install libcaribou-gtk3-module 

libcaribou-gtk3-module is installed in your system.

Make ensure the libcaribou-gtk3-module package were installed using the commands given below,

$ sudo dpkg-query -l | grep libcaribou-gtk3-module *

You will get with libcaribou-gtk3-module package name, version, architecture and description in a table

libcaribou-gtk3-module package basic information: