$29
Per provider · per month
Vyan Product — Book · Module C.03
Library C.3 · Codex Ch. 9 · Interval algebra
Booked. Deposited. Reminded.
Request-to-book or instant. The booking hardens when the deposit lands. Availability is pure math — timezones, buffers, lead time — so a double-booking is not rare. It is impossible. And a taken slot answers with the three nearest alternatives, never a dead end.
Free to start · No setup fees · No contract · Your data, readable forever
01
The signature screen
Book — week of Jun 15TZ America/Chicago · 15m buffers
Mon 15
9:00Fade + beardJ. Cole
1:30LineupT. Brooks
Tue 16
11:30Color consultM. Diaz
3:00Open
Wed 17
10:00Full setTasha B.Deposit pending · $50
Thu 18
1:00CutD. Park
2:00Beard trimL. Nguyen
Fri 19
9:30FadeA. Romero
3:30Open
Thu 2:00 opened by a cancellation — offered to 3 on the waitlistOne-tap SMS claim · first claim wins · backfilled in 4 minutes
Claimed
Fig. 01The week strip — deposits harden the calendarCodex Ch. 9
The calendar defends itself.
A confirmed slot is held by math, not hope. The deposit-pending appointment sits outlined until the money lands — then it hardens, the reminder sequence arms, and the no-show problem becomes someone else's story.
Cancellations do not become dead hours. The waitlist makes the offer before you have read the cancellation text.
02
The flows that are the product
F.1
Request-to-book, or instant
Approve each request, or let clean slots confirm themselves. Both paths create the relationship and end in a confirmed next step.
F.2
Deposit-gated confirmation
The booking hardens when the deposit lands. Until then it holds, politely. No deposit, no hardened slot — skin in the game is the policy, not the argument.
F.3
Availability as pure math
Timezones, buffers, lead time, working hours — computed, never eyeballed. A double-booking is impossible by construction. A taken slot answers with the three nearest alternatives, never a dead end.
F.4
Waitlist economics
A cancellation auto-backfills from the waitlist. One-tap SMS claims; first claim wins. The dead hour pays for the month.
F.5
Reminders and no-show defense
Confirmations, reminders, and a deposit already on the line. No-shows stop being a tax and start being rare.
F.6
External calendar sync
Your outside calendar blocks Vyan slots; Vyan bookings land on your outside calendar. One truth, both directions.
03
The composition
Complete alone. Seamless together.
Book replaces the scheduling link, the payment app, and the apology text on its own. Compose it and every booking flows through the event bloodstream — deposits harden it, intake gates it, the relationship carries it.
D.1
Without Pay
Deposits become a deposit-by-external-method checklist state. The discipline survives even when the rails are elsewhere.
D.2
Without Forms
Intake falls back to a simple notes field. Structured questions arrive when Forms does.
D.3
Without Reviews
Book asks for nothing. The review flow is Reviews' job — never duplicated, never nagging from two places.
04
The data sheet
0
Double-bookings, by construction
3
Nearest alternatives on a taken slot
$0
Setup fees. Ever.
Emits
appointment.requestedappointment.confirmedappointment.completedwaitlist.offeredwaitlist.claimed
Consumes
deposit.paid — hardens the bookingform.submitted — intake-gated approval
Spine
every booking creates or updates a relationshipservice address → resolveAddress
Composes with
05
Questions
What is deposit-gated booking?
Deposit-gated booking confirms an appointment only when the deposit lands. Until the money moves, the slot holds politely; once it lands, the booking hardens and reminders arm. No-shows stop being a tax — the client has skin in the game before the chair is reserved.
Q.1Can I replace Calendly with deposits?
Yes. Vyan Book covers what a scheduling link covers — availability, buffers, timezones, two-way external calendar sync — and adds the part that protects revenue: the booking confirms only when the deposit lands. Move your link in your bio and the switch is done.
Q.2How does deposit booking stop no-shows?
A deposit on the line changes the math: confirmations and reminders arm the moment the booking hardens, and the client has already committed money to the slot. No-shows stop being a tax and start being rare.
Q.3What happens when a client cancels?
Waitlist automation backfills the slot. The opening is offered by one-tap SMS to the waitlist; first claim wins. The dead hour pays for the month instead of costing it.
Q.4Is Vyan Book built for barbers and tattoo artists?
Yes — it is built for chair-and-calendar trades: barbers, tattoo artists, stylists, and any provider who sells time. $29 per provider per month, and the Studio Edition composes Book with Forms, Reviews, and Pay at $99 plus $29 per provider.
Stop apologizing for your calendar.
Set your services, your buffers, and your deposit policy in Vyan Builder. Your booking link is live the same hour — and it collects.