What it solves
Just Girl Studio
End-to-end platform for a beauty studio that connects configurable service booking, scheduling, deposits, a passwordless client portal, administrative operations, loyalty and referrals. Its backend coordinates payments, availability, private media, notifications, calendars, and analytics while preserving transactional consistency and scoped access.
- Booking and scheduling
- Passwordless portal
- Payments and benefits
- Multichannel automation
- Administrative operations
- Financial consistency
- Immutable snapshots, idempotency, and deduplicated webhooks before creating an appointment.
- Scheduling integrity
- Application-owned availability with overlap protection enforced in PostgreSQL.
- Secure access
- Scoped hashed links and revocable sessions for the client portal and appointments.
- Asynchronous workflows
- Reminders, delivery tracking, retries, and calendar synchronization.
Next.js · React · TypeScript · PostgreSQL · Drizzle ORM · Stripe · Twilio · Resend · Cloudflare R2 · Google Calendar · GTM / GA4 · Vercel
01 / ProductBooking + portal + administration
02 / ReliabilityIdempotency + atomicity
03 / IntegrationsStripe + Twilio + Resend + R2
04 / AutomationCron + retries + calendar
GIRL