| Booking pages | Public /b/<handle>, invitee books with no account |
| Calendar provider | Google (scopes: calendar.events, calendar.freebusy) |
| Free/busy | Polled live at booking time (no reliance on lossy webhooks) |
| Double-booking guard | Re-checked against the live calendar at confirm |
| Meeting link | Google Meet link created on every booking |
| Both calendars updated | Real event with both parties as attendees |
| Dual time-zone display | Every time confirmed in host zone AND invitee zone |
| Reschedule / cancel | Private capability-key link on every booking, no login |
| Meeting types & availability | Per-host name/length/buffer and weekly rules |
Free tier live (one link, core scheduling, Google sync, "Powered by Cachet" signature). Paid tiers in design, not yet on sale.