Hi.

Not knowing better I added this to my operating-system form:

  (groups (cons* (user-group
                  (name "jas")
                  (id "1000"))
                %base-groups))

Running 'guix system reconfigure /etc/config.scm' worked fine, and upon
boot I was placed in group 30001.  Any idea what happened?  A warning
would have been nice.

If there had been an example in the manual I wouldn't have made the
mistake, so the attached patch improves this manual page:
https://guix.gnu.org/en/manual/en/html_node/User-Accounts.html#User-Accounts

/Simon