DaktariDesk | Joseph Rwanda

Stack

Next.js

TypeScript

WhatsApp Business API

Google Calendar API

Supabase

Paystack

Proof metrics

Channels

WhatsApp + Google Calendar sync

Workflows

Reminders, recalls, review requests

Billing

Self-serve tiers with VAT via Paystack

Problem

Clinics lose significant monthly revenue to no-shows, and manual phone-call reminders don't scale.

Front-desk staff won't adopt a brand-new system, so any solution must fit existing Google Calendar habits.

Dormant patients and missing reviews are untapped revenue and growth that no one has time to chase.

Solution

Built a zero-migration workflow: receptionists keep using Google Calendar and just add the patient's phone number.

Automated WhatsApp reminders 24 hours before each appointment with one-tap confirmation that updates the calendar.

Added a recall engine that detects patients inactive for 3/6/12 months and sends personalized win-back messages.

Closed the loop with automated post-visit Google review requests to drive local SEO and new leads.

Architecture

Architecture diagram (add image when ready)

Integration layer: Google Calendar read access detects appointments and parses patient phone numbers.

Messaging layer: WhatsApp Business automation for reminders, confirmations, recalls, and review prompts.

Data layer: Supabase-backed clinic, patient, and appointment state with show-up and revenue tracking.

Billing: Paystack subscription tiers (with VAT) and a 14-day trial for self-serve onboarding.

Outcomes

Delivered a vertical healthtech SaaS that attaches to existing clinic workflows with near-zero training.

Turned a single integration (Google Calendar) into three revenue levers: retention, recalls, and reputation.

Showcased event-driven automation and third-party API orchestration in production.

Links & artifacts

Live Demo Origami Tech Contact

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