Fallback glance.url

### Description

Is it possible to implement a fallback url for the widget docker-containers for when using glance not on home network? The shortcuts don't work when I connect to tailscale from outside my home network as the glance.url variable is configured with the home network url.
ie to have:
glance.url:http://192.168.1.4:1111, http://tailscale:1111,http://proxy:radarr