Then I missed the point and your use case. I re-read your article and this is the only sentence where I believe I could have got it if I read it carefully enough:

Now I can finally send my friends a link to a calendar event for our next pub crawl.

I suggest you update the tagline to say "link" as there is no "terminal" involved. That is, you don't use cURL and you don't send a normal calendar invitation email, but instead you send a message with a link that gives them the ical file when they click it.