openssh pubkeys as part of system config

[ng0]

Hi,

I will soon start to assemble an GuixSD system image for IN-Berlin
virtual servers.
I know bayfront uses a module which defines lsh pubkeys for user 'root'
(?) and makes them part of the system generation.

For IN-Berlin (and probably other hosters) it would help if there was a
way to define openssh pubkeys in the system config.
I know I could just generate an image, make it writable and put my key
into /root/.ssh/authorized_keys, but it would be better if this would be
possible to define directly.

Has someone looked into this before?