Appointment booking
Timezones are brutal. Master the maths behind global scheduling and business hours.
An appointment platform built on staff calendars, service durations and opening hours. Availability computed rather than stored, and a slot that cannot be sold twice, running on Cloudflare Workers.
What this build solves
- Availability computed from staff hours, never stored
- Timezones and daylight-saving that survive March
- Race-free holds under concurrent booking
- Customer, staff and owner panels on one model
- Cancellation windows, deposits and no-shows
- Reminder pipelines that fire exactly once
Two implementations
The same architecture, built twice. Pick the framework you work in.
Want the complete source when it ships? Both sites take waitlist sign-ups.