Currently I have a single Almanac device (named `worker.phabricator.example.com`) for our "worker" instances, which run our Phabricator daemons. Our worker instances currently register into the cluster with `./bin/almanac register --device=worker.phabricator.example.com --force --private-key=/path/to/private.key`. Currently we run only a single worker instance, but I am unsure of how to properly scale this setup with Almanac... can I reuse the `worker.phabricator.example.com` device for multiple instances or do I need to create a separate Almanac device for each instance?