Calendar sync (ICS feeds)

See bookings in your calendar

Open Calendar sync and create your private feed URL. Add it as a subscription: Google Calendar → Other calendars → From URL; Apple Calendar → File → New Calendar Subscription; Outlook → Add calendar → Subscribe from web. Calendar apps refresh subscriptions on their own schedule (Google can take several hours). Anyone with the URL can read your bookings, so keep it private; Regenerate or Revokeif it leaks.

Block times you're busy elsewhere

Paste the private “secret address in iCal format” of a calendar you already use (Google: Settings → your calendar → Integrate calendar). We fetch it every 30 minutes and only store start and end times — never titles or attendees. Events marked “free”/transparent or cancelled are ignored. Daily, weekly, monthly and yearly repeating events are expanded (including edited or cancelled single occurrences); rarer rules such as hourly repeats only block their first occurrence.

Two-way Google sync

Writing directly into Google Calendar via OAuth requires the service owner to register an app with Google; that is not set up yet. The feeds above work with every major calendar today.