/// VERIFIED PROJECTS
Case Studies
FLAGSHIP> Production platforms and automation engines engineered by KAI LABS.
8-domain modular monolith with pg-boss async workers for weekly payouts, appointment caducity, and WhatsApp notifications.
// CHALLENGE
Building a marketplace with complex domain rules: minor safety (ADR 0004), 24h request expiration, weekly payout batching, and Wompi payments.
// SOLUTION
Modular monolith on Next.js 15, Drizzle ORM, and PostgreSQL 16 with 4 pg-boss worker clocks and abstract payment factory.
ARCHITECTURE: Domain Modular Monolith with Async Workers
8 MODSidentity (RBAC + Better Auth)catalog (Dynamic Services)availability (Schedule Engine)bookings (State Machine)payments (Wompi + Payouts)reputation (Verified Reviews)messaging (In-App Chat)notifications (WhatsApp / Resend)
STACK
Next.js 15 (App Router)PostgreSQL 16 + Drizzle ORMpg-boss (Async Workers)Better Auth (RBAC)Wompi Gateway (Factory)Tailwind CSS v4
// KEY METRICS
8 Isolated domain modules with strict type contracts
4 pg-boss worker clocks (expiry, WhatsApp alerts, autocompletion, payouts)
100% strict type safety from SQL to React
Wompi payment gateway with local mock engine
// SYSTEM TELEMETRYLIVE REPLAY
▮STREAMING TELEMETRY...