`~/.mutt/aliases` using `khard` and it seems to at least minimally work for
me, but I haven't explored this very much yet.
+I had to install python3-vobject 0.9.4.1-1 from experimental to fix
+[eventable/vobject#39](https://github.com/eventable/vobject/issues/39)
+saving certain vCard files.
+
Finally, `mutt` integration. I already had `set query_command="lbdbq '%s'"`
in `~/.muttrc`, and I wanted to keep that in place since I still wanted to
use LDAP querying as well. I had to write a very small amount of code for
setup for just me, but it means I have both better usability for myself and
more independence from proprietary services, and I think I can add extra
users with much less effort if I need to.
+
+## Postscript
+
+A day later and I've consolidated all my accounts from Google Contacts and
+`~/.mutt/aliases` into the new system, with the exception of one group that
+I had defined as a `mutt` alias and need to work out what to do with. This
+all went smoothly.
+
+I've filed the new `lbdb` module as
+[#866178](https://bugs.debian.org/866178), and the `python3-vobject` bug as
+[#866181](https://bugs.debian.org/866181).