I've just "guix pull"ed and I get the following:

--8<---------------cut here---------------start------------->8---
> guix environment --container --ad-hoc coreutils shadow 
# id
uid=0(ambrevar) gid=0(users) groups=0(users),65534(overflow)
# groupadd audio
groupadd: PAM: Critical error - immediate abort
# useradd foo
useradd: PAM: Critical error - immediate abort
--8<---------------cut here---------------end--------------->8---

Any idea where to go from here?

Ricardo Wurmus <rekado@elephly.net> writes:

> I agree.  Defaulting to UID 0 is not good.  (“conda” is an example of
> one application that has very different behaviour when it thinks it is
> running as root.)

What about defaulting to 1000?  It's rather common, so I guess that
would be anonymous enough and "just work".

-- 
Pierre Neidhardt
https://ambrevar.xyz/