In general, if you install something from a PPA, make sure that you check the license yourself to make sure that it is free software. Here's a quick explanation of what a PPA is.
https://help.ubuntu.com/community/PPA
In general, if you install something from a PPA, make sure that you check the license yourself to make sure that it is free software. Here's a quick explanation of what a PPA is.
https://help.ubuntu.com/community/PPA