The `config.yml` document for *kitchen* contains several "secret" values
(e.g. passwords to Nextcloud, MQTT, etc.). We don't want to commit
these to the Git repository, of course, but as long as Kustomize expects
to find the `config.yml` file, we won't be able to manage the
application with Argo CD. Ultimately, *kitchen* needs to be modified to
be able to read secrets separately from config, but until then, we will
have to avoid managing `config.yml` with Kustomize.
I decided to run the kitchen screen service in Kubernetes rather than on
the Raspberry Pi in the kitchen. This will hopefully make it a bit more
reliable and easier to update. It will also make it easier to rebuild
the OS on the Pi, if it ever becomes necessary, since it really only
needs Firefox (and MQTTDPMS) now.
Dustin