$ sudo apt-get update
$ sudo apt-get install galette-plugin-maps 

galette-plugin-maps is installed in your system.

Make ensure the galette-plugin-maps package were installed using the commands given below,

$ sudo dpkg-query -l | grep galette-plugin-maps *

You will get with galette-plugin-maps package name, version, architecture and description in a table

galette-plugin-maps package basic information: