Too Long; Didn't Read
One of the problems of a shared system, is that sometimes multiple applications are used by multiple people. Normally this would be solved by the excellent multi-user support inherent to *nix systems. After all<em>, </em>*nix and derivatives were <a href="https://www.wikiwand.com/en/History_of_Unix" target="_blank">designed to be</a> used by multiple users at the same time.