Present publishes a read-only CalDAV feed that you can subscribe to in your preferred calendaring client. This feed publishes all day events for Test Double holidays (US & CA) as well as a summary of all the people in the company who have scheduled time away from work for any given business day. It can be a handy way to check if someone is working or not (and a good reason to schedule your time in Present using the Time Away interface in advance.
In the Google Cal UI, click the +
button above your calendar list and choose "From URL":
Enter the WebCal URL:
Find the calendar under "other calendars" and expand its menu to open the settings:
Finally, configure the name and its other settings:
On macOS, in Calendar.app, select "Add calendar subscription" from the File
menu:
Enter the URL:
And then configure the calendar's notifications and refresh rate: