Best way to delete system profile generations?

[Christopher Lemmer Webber]

Hello!  I wonder what others do to delete their system profile
generations?  Here are some paths I know about.

Path one: using the command line manually

  # Look at which profiles are available
  ls -l /var/guix/profiles/
  # Remove them manually
  rm /var/guix/profiles/system-{9,10,11}-link

Path two: using emacs, but you gotta do it as root so:

  # start up emacs as root, with the system generations listed:
  sudo -E emacs -nw -q --eval "(progn (require 'guix) 
(guix-system-generations))"

  # Now you can browse the generations with more information available,
  # decide with a bit more care which ones to remove.
  # Mark each one you want to remove with "D", and delete with "x".

Is there a better way?  What do others do?  It doesn't seem there's a
good way to delete from my current emacs session because it requires
root privileges.

guix-mode remains great, btw!

 - Chris