https://techcrunch.com/2022/02/08/fantastical-lets-you-share-a-link-to-schedule-meetings-no-calendly-required/

Flexibits, the company behind popular calendar app Fantastical, has added several new features that should help with scheduling. While Calendly seems to be the dominating player in this space, Flexibits pitches its new ‘Openings’ feature as a privacy-first scheduling feature. And, of course, it’s built into Fantastical directly, which means that you don’t need another tool, service or subscription.

After you update the Fantastical app to version 3.6, you’ll see a few new options in the settings panel — the new features are available on macOS, iOS and iPadOS. By default, Openings is disabled for all users. You have to set it up manually to start using it.