I took the plunge and upgraded to Appdaemon 4. Config below (and added to the above)
appdaemon.yaml:
secrets: /config/secrets.yaml
appdaemon:
latitude: 52.902630
longitude: -0.091980
elevation: 2
time_zone: Europe/London
plugins:
HASS:
type: hass
http:
url: http://127.0.0.1:5050
hadashboard:
admin:
api:
appdaemon add-on config
system_packages: []
python_packages:
- hass-apps
init_commands: []