How can I uninstall an app without leaving traces? I mean: months ago I have installed Geary mail, but I didn't like and remove it with zypper rm. But today, I decided to give another chance and I installed Geary again and the app opened with all my configurations ready, because of the last installation.

So, the question is: how can I remove an application without traces? I want to remove all previous configurations and so one... Should I delete ./cache and others hidden folders in /home?

Many thanks