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Multi-tenant SaaS

ToAppointment

The online scheduling system for your business: 24/7 booking, reminders, payments, cash control and reports in one panel.

Role
Founder, design and engineering
Year
2026
Status
In production
Stack
Next.jsSupabaseTypeScriptMercado PagoWompiWhatsApp Cloud APISentryVercel
completed product phases
7
dashboard sections
16
database migrations
45
E2E test suites
11

The opportunity

Many appointment-based businesses run their schedule through WhatsApp and notebooks. Existing tools are expensive or not built for Colombia.

The product

Scheduling for multiple staff and locations, with three plans and a 15-day trial. Subscriptions are billed through Mercado Pago and each business receives client payments in its own Wompi account.

  • 24/7 online booking
  • Calendar and reminders
  • Clients and clinical records
  • Signed consent forms
  • Payments and cash control
  • Inventory
  • Marketing and loyalty
  • Per-branch reporting

Key decisions

Each business is an isolated tenant: its public site resolves by subdomain or path, and row-level security ensures none of them can see another's data.

E2E tests only run against a local database and stop if they detect any other target, so a test never touches real data or triggers real sends.

Outcome

It has launched and is available online, with all seven product phases complete. Any appointment-based business can run its schedule and booking site from a single panel.

Next projectNexus Finance