A comment to the answer of the question: Is it possible to run pbuilder without root privileges? says this,
If Slirp works out of the box and doesn’t require root (for writing to /etc and adding your user to a group) to set up, why would anyone not use Slirp for this?
Does the commenter mean to use slirp to install and manage packages? How do I use slirp for this?
I tried google, but could not find useful information. I cannot add comment so I asked new question.