I have a piston set up to announce events from my Google and Outlook 365 calendars through IFTTT. Here’s the Google example, In IFTTT I have the following applet set up.
Notice that the url is the standard one you’d get out of WebCore for IFTTT excep at the end is the added
You just have to use the “Add Ingredient” button.
Then in WebCore:
You can use the same piston but use the applet for Outlook 365 to get your calendar from there too. Enjoy!