Case study
StockBox - POS
Works when the line drops - local sales and stock, then sync.
The challenge
Keep minimarts and cafes selling when connectivity drops in the middle of the day.
The Nitro solution
Vanilla PHP and Bootstrap POS on Windows Server with local-first sales and sync when the line returns.
Snapshot metrics
Stack
Business context
Minimarts and cafes in areas with unstable connectivity still need to ring sales, print receipts, and track stock when the line drops.
What we delivered
An offline-first POS in vanilla PHP and Bootstrap on Windows Server: local sales and inventory with a sync path when connectivity returns.
Technical approach
We kept dependencies thin for long-lived installs and local IT comfort. Conflict resolution rules favor operator review over silent merges when two offline registers diverge.
Outcomes
Revenue loss from outages drops because registers keep working. Owners get predictable backup and restore steps without container expertise.
