Hi Ludovic,
Not really answering your question, but would user namespaces be an
option for you? If so,
<https://lists.gnu.org/archive/html/guix-devel/2018-05/msg00139.html>
might be a simpler option.
Thank you for the suggestion, this does look interesting.
However, the original use-case of using guix in a non-root scenario is
no longer relevant to me: I was convincing enough to get guix
root-installed on all relevant machines on which I do not have root
access. So I can enjoy guix properly, now.
However, I could very well imagine guix to be used on a per-user basis,
acting on some sub-directory of $HOME. Afterall, many (most?)
desktop-systems are used by a single user - or so I would argue…
On the original topic - I recently learned that the mechanisms proot
employs might just not work on all systems. So the issue may not per-se
have been with guix, but with proot. I’m no expert on the subject
though, and didn’t dig deeper yet.
Best regards,
Florian