Why and when to use Personal Package Archives (PPA)

Posted by reversiblean on Super User See other posts from Super User or by reversiblean
Published on 2014-06-09T08:05:06Z Indexed on 2014/06/09 9:28 UTC
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Do you prefer PPA over core repositories and why or why not?
Are there any compatibility issues when using a PPA as there are different distro releases but just one common repository?
Where would you normally search for application repositories that are not in the core repositories?

I.e., I was about to install Gnome Flashback in Ubuntu 12.04 which is the new classic version of earlier fallback but found that it's only available as a ppa-release and was wondering which one to choose between the two; fallback or newer flashback.

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