[bug#56690] [PATCH] gnu: seatd-service-type: Should use seat group.

[Liliana Marie Prikler <liliana.prikler@ist.tugraz.at>]

Am Montag, dem 08.08.2022 um 21:50 +0300 schrieb muradm:
> > Which user?  Closely related, who acquires resources provided by
> > @code{seatd}?  Just the greeter?  A regular user logging in?
> > What access level is needed/provided?  Read access?  Write 
> > access?
> While I understand what you are saying, for me user is fine, and I
> can't come up with better description, as my eyes too blurred on
> this subject. Anyway for now I specified it as "libseat user".
I don't think this really aids us here – it instead lets us ask who is
a "libseat user".  Perhaps you want to specify "login managers" like
greetd or gdm/sddm/etc. explicitly here?  Also, (when) do regular users
have to be in the seat group?

> > > +  (group seatd-group (default "seat"))
> > > +  (existing-group? seatd-existing-group? (default #f))
> > AFAIK this is not necessary.  accounts-service-type can handle 
> > multiple eq? groups, so as long as you're careful with what you put
> > into group, you shouldn't get an error.
> ok field removed
Note ‘eq?’ groups here.  In other words, you should be able to take a
group (not just a group name) for the group field, sanitize the field
so that it will always be a group, and then use that group in seatd-
accounts (see the second option mentioned in
<79341a82bf9cd5fc6c2227255095f3fe2927dcbe.camel@ist.tugraz.at>).  If
for instance instead of seat, you wanted the video group, you would
have to take the one from %base-groups, rather than creating a new one.

Cheers