SIKOPAS

SIKOPAS (Sistem Aplikasi Digital Manajemen Perkebunan Kelapa Sawit) digitises the daily work of an oil palm plantation: harvests, fertilising and field activities, costs and month-end closing — from the office dashboard down to the field crew's phone.

It's a monorepo with a Laravel 11 API and Filament panel, a React + Vite web app and an offline-first Flutter app for the field, backed by PostgreSQL with PostGIS, Redis and MinIO in Docker. The system is built around strict rules: fixed-precision numbers for money, weight and area, an append-only cost ledger corrected only by reversing entries, derived values (BJR, tonnes per hectare, cost of goods) that are never typed in by hand, and row-level security per company enforced in the database.