Android Utility App Development Using an AI App Builder
Budget: €250 – €750 EUR
analytics, and invoicing. - App must be mobile-friendly; Drivers may
be offline (poor network) and must sync when back online.
User Roles & Permissions - Owner (Admin) — full access: users, products, raw materials, pricing,
P&L;, invoices, reports, company settings. - Staff (Kitchen) — create/edit products, record
production batches, manage inventory. - Driver — view routes, log deliveries & returns, capture
POD, offline sync.
Key Functional Modules 1. Authentication: JWT login, role-based access, audit logs. 2. Products &
BOM: name, buy price, sell price, profit, photo, shelf life, recipe (raw material consumption). 3. Raw
Materials & Inventory: check-in deliveries, track lot numbers, expiry, FIFO, low stock alerts. 4.
Production: staff record production, auto-consume raw materials, create finished goods batches
with expiry. 5. Orders & Deliveries: daily manifests, Google Maps route optimization, offline driver
app, delivery/return logging, POD photos/signatures. 6. Returns & Recommendations: track return
rate per customer/product, suggest delivery adjustments. 7. Invoicing: auto-generate invoices,
deduct returns, PDF/email export, Stripe optional, credit notes. 8. Reporting: P&L;, COGS, waste,
per-customer profitability, driver metrics, CSV/PDF export. 9. Notifications: low stock, expiry,
overdue invoices, large returns, driver anomalies. 10. Integrations: Google Maps, SMTP, Stripe.
Data Model (simplified) - User, Customer, RawMaterial, Product, ProductionBatch,
InventoryTransaction, Delivery, Order, Invoice, AuditLog.
Business Rules & Edge Cases - FIFO inventory, expiry → waste, auto-cost calculation, offline driver
sync with conflict resolution, audit trails.
Deliverables 1. Full repo: frontend, backend, DB schema/migrations, seed data. 2. Dockerfile +
docker-compose. 3. README with setup + deployment. 4. Automated tests (unit + E2E). 5.
OpenAPI/Swagger docs. 6. Sample seed data for 6 products and 10 customers.
Compact Prompt (to give AI builder) "Build a full-stack, production-ready PWA for a wholesale
sandwich supplier (owner + staff + drivers). Requirements: - Roles: Owner, Staff, Driver with JWT
auth, role-based access, audit logs. - Inventory: raw materials check-in, batch FIFO, expiry alerts,
low stock alerts, BOM support. - Production: record ProductionBatch, auto-consume raw materials,
batch expiry (4 days). - Deliveries: route optimization via Google Maps, offline driver app, log
delivered/returned, POD photos/signatures. - Returns & Recommendations: track return rate,
suggest reduced drops/replacements. - Invoicing: auto-generate invoices, credit notes, Stripe
optional. - Reporting: P&L;, COGS, waste, profitability, CSV/PDF export. - Deliverables: repo with
frontend/backend, DB migrations, seed data, Dockerfile, tests, Swagger docs, README."
be offline (poor network) and must sync when back online.
User Roles & Permissions - Owner (Admin) — full access: users, products, raw materials, pricing,
P&L;, invoices, reports, company settings. - Staff (Kitchen) — create/edit products, record
production batches, manage inventory. - Driver — view routes, log deliveries & returns, capture
POD, offline sync.
Key Functional Modules 1. Authentication: JWT login, role-based access, audit logs. 2. Products &
BOM: name, buy price, sell price, profit, photo, shelf life, recipe (raw material consumption). 3. Raw
Materials & Inventory: check-in deliveries, track lot numbers, expiry, FIFO, low stock alerts. 4.
Production: staff record production, auto-consume raw materials, create finished goods batches
with expiry. 5. Orders & Deliveries: daily manifests, Google Maps route optimization, offline driver
app, delivery/return logging, POD photos/signatures. 6. Returns & Recommendations: track return
rate per customer/product, suggest delivery adjustments. 7. Invoicing: auto-generate invoices,
deduct returns, PDF/email export, Stripe optional, credit notes. 8. Reporting: P&L;, COGS, waste,
per-customer profitability, driver metrics, CSV/PDF export. 9. Notifications: low stock, expiry,
overdue invoices, large returns, driver anomalies. 10. Integrations: Google Maps, SMTP, Stripe.
Data Model (simplified) - User, Customer, RawMaterial, Product, ProductionBatch,
InventoryTransaction, Delivery, Order, Invoice, AuditLog.
Business Rules & Edge Cases - FIFO inventory, expiry → waste, auto-cost calculation, offline driver
sync with conflict resolution, audit trails.
Deliverables 1. Full repo: frontend, backend, DB schema/migrations, seed data. 2. Dockerfile +
docker-compose. 3. README with setup + deployment. 4. Automated tests (unit + E2E). 5.
OpenAPI/Swagger docs. 6. Sample seed data for 6 products and 10 customers.
Compact Prompt (to give AI builder) "Build a full-stack, production-ready PWA for a wholesale
sandwich supplier (owner + staff + drivers). Requirements: - Roles: Owner, Staff, Driver with JWT
auth, role-based access, audit logs. - Inventory: raw materials check-in, batch FIFO, expiry alerts,
low stock alerts, BOM support. - Production: record ProductionBatch, auto-consume raw materials,
batch expiry (4 days). - Deliveries: route optimization via Google Maps, offline driver app, log
delivered/returned, POD photos/signatures. - Returns & Recommendations: track return rate,
suggest reduced drops/replacements. - Invoicing: auto-generate invoices, credit notes, Stripe
optional. - Reporting: P&L;, COGS, waste, profitability, CSV/PDF export. - Deliverables: repo with
frontend/backend, DB migrations, seed data, Dockerfile, tests, Swagger docs, README."