Your business, with its own online booking agenda

The project

Turn is a complete web solution for service businesses that need to professionalise the way they handle clients: your customers book on their own, 24 hours a day, while your staff schedule stays full — no gaps, no last-minute cancellations. Under the hood, it runs on a modern high-speed architecture with integrated payments and real-time availability, with no servers to maintain.

How it works inside

01

Real-time availability engine

The booking module is the core of the app: it crosses each professional’s real schedule against taken slots in real time.

• Per-service buffers (clean-up and rest times between bookings)
• Automatic sync across staff schedules

02

Adaptive image proxy

A Cloudinary-backed proxy optimizes visual metrics —LCP— and cuts cloud costs.

• High-frequency Redis caching
• Hotlinking protection with strict domain control

03

Perimeter security (WAF)

A perimeter middleware protects the infrastructure in real time, before business logic is ever touched.

• Strict rate limiting on critical auth routes
• Honeypot systems for early detection

04

360° auditing and traceability

Every API interaction is audited and contextualized by the trackRequest middleware.

• Automatic IP geolocation: country, city and ISP
• Monitoring of latency, event-loop lag and CPU/memory usage
• Categorized events: REQUEST, THREAT, LOGIN, SYSTEM

The problem

Service businesses lose revenue in three places: a manual schedule that goes stale, clients lost to slow phone or WhatsApp replies, and no clear data on how the business is actually doing.

• Bookings by WhatsApp or phone: every appointment needs a human on the other side — and eats into operating time.
• Double bookings and no-shows: without live sync, every gap in the schedule is money lost.
• Zero traceability: who signed in, booked and dropped off is recorded nowhere.

The solution

Turn puts the official schedule online and automates the whole process: clients book on their own around the clock, the system validates availability instantly and key metrics land in a real-time dashboard.

• Real-time availability engine: instant booking sync, per-service rules and dynamic pricing with no overlaps.
• 24/7 self-service: clients book on their own from any device, and the front desk finally breathes.
• High-speed, secure architecture: protected sessions and top performance on low-latency cloud environments.

Live examples

Demo

Turnera Demo

Sample site built with the same booking engine.

View example→

Client

Sample Clinic

Multi-branch scheduling for a clinic.

Coming soon

Extras included

Stateless serverless architecture

Absolute separation of concerns, tuned against cold starts and volatile memory.

Hybrid JWT + Redis auth

Refresh tokens rotated per device with instant revocation from the dashboard.

Marketing attribution

Campaign and sign-up source management, without third-party cookies.

Transactional email

Sendings with context injection and templates per event type.

Serverless cron jobs

Scheduled pull-based cleanup: the database stays healthy with no resident processes.

Next steps

1. 1

   Contact

   Tell me what you need: a short call to understand the project, its scope and timeline.

2. 2

   Discovery

   We gather requirements, users and constraints; what gets built —and what doesn't— is put in writing.

3. 3

   Solution presentation

   I show you the proposal —architecture, phased scope and budget— and we adjust whatever is needed.

4. 4

   Design

   I design the interface and main flows; you approve how it looks and works before building.

5. 5

   Development

   Phased construction with testable deliveries: every advance is seen working, not in a report.

6. 6

   Implementation

   Production rollout, data migration if needed, training and launch support.

Pricing

Every project is tailored to the specific needs of the business; final scope and pricing are defined in an initial discovery stage.

Frequently asked questions

SaaS option