<i>&gt; preferably with two different managers.</i><p>That&#x27;s overcomplicating things. The &quot;user&quot; manager would have to figure out where the specific distribution is storing this or that lib. Doing it reliably across even a small subset of distributions (say, Ubuntu, Debian, Fedora and RedHat) and a small subset of their releases, would be very challenging.<p>It would make much more sense to add a &quot;user mode&quot; option for the likes of apt-get, whereby it does not need sudo and it will install the specified package in ~&#x2F;bin, ~&#x2F;usr etc, symlinking necessary libraries. That doesn&#x27;t seem too hard to pull off, in theory.