The till keeps ringing when everything else goes down.

Built for the Friday you've already had.

If you run stores, you've seen these. NoPOS was designed around each one.

The back-office server dies and the kitchen screens go blank.

There is no server to die. Every till and kitchen screen holds the whole day's orders and talks to the others directly. Lose any device and the rest carry on.

The internet drops and the tills start numbering orders differently.

Order numbers are made on the till by the same rule, online or offline. Nothing switches when the line goes down, so nothing changes.

Uber Eats and Mr D orders come through twice, or have to be captured by hand.

Aggregator orders arrive straight on the till and kitchen screen. A repeated delivery merges into the same order, and an order is only accepted once a device in the store actually has it.

Load shedding cuts the power mid-sale.

Each sale is written to disk before the screen confirms it. When the power comes back, the till picks up where it left off and catches up from its neighbours.

Rural stores on LTE that's working one minute and gone the next.

The store trades on its own network and syncs when it can. If the link stays down, delivery apps pause automatically and resume once it's stable, without flapping.