Tri-platform agritech app: Flutter (Android/iOS/Web) + Laravel 8 multi-tenant — connecting farmers to loans + harvest buyers

Indonesian farmers mostly underserved by financial systems + weak bargaining position when selling harvests to middlemen. Needed agritech platform connecting farmers to loan providers + harvest buyers directly, usable in the field via mobile + tablet, but also requiring desktop dashboard for operations teams. Multi-tenant architecture to handle multiple agribusiness companies as operators. AI plant analysis to assist farmer diagnostics.

Capital Commerce built a full-stack multi-phase platform:

Mobile (Flutter monorepo, tri-platform):

• Flutter with responsive layout — Phone (<850px), Tablet (850-1099px), Desktop (≥1100px)
• Monorepo agridesa_core (shared library) + agridesa-app (application)
• GetX state management throughout
• Single codebase tri-platform: Android/iOS/Web Desktop/Web Tablet
• Firebase Hosting for web deploy

Backend (Laravel 8 multi-tenant):

• 7 separate modules: User, Farmer, Location, Asset, Workflow, Messaging, Scheduler
• 474+ total routes (57 web routes for Location module alone)
• Multi-tenant via automatic company_id injection on every API call
• ACL/permission system per role + per module
• JWT auth with Bearer token + auto-injected company_id
• Cloud Run deploy (Dockerfile.cloudrun)

Integrations:

• Gemini AI — plant analysis + farmer chatbot
• Google Maps (4 separate API keys for Android/iOS/Web/Places API)
• Raja Ongkir — shipping integration for harvest delivery
• Firebase — auth + hosting + analytics
• Kode Pos service — Indonesian postal code lookup

Codified patterns:

• HTTP API extension pattern per domain (api+user.dart, api+farmer.dart, etc)
• ApiResponse wrapper with error/result split
• Multi-tenant company_id injection rules (superadmin bypass, /jobs + /acl/roles bypass, general-settings = 0)
• envied-encrypted secrets (Maps key, Gemini key, Raja Ongkir key) via obfuscate: true
• 11+ runtime pitfalls codified in CLAUDE.md (GetX Obx guard, LocalStorage clearSession trap, deep link handler, BaseTabPageController refresh pattern, etc)

Active engagement (Sept 2025 — 2026), platform live:

• Tri-platform Flutter app (Android/iOS + Web Desktop + Web Tablet) — single codebase, responsive layout, persistent sidebar for web ≥850px.
• Laravel 8 backend with 474+ routes + 7 modules, multi-tenant ready for multiple agribusiness operators.
• AI plant analysis via Gemini integration — farmers upload plant photos, get diagnostics.
• Google Maps integration with 4 separate API keys (Android, iOS, Web, Places API).
• Multi-tenant SaaS-ready — automatic company_id injection across all API calls.
• Cloud Run deploy (Dockerfile.cloudrun) for auto-scale backend.
• Documentation discipline — project-level CLAUDE.md with 500+ lines of patterns + pitfalls + design system reference.