Why we built a POS with no hardware
A billing machine costs more than a month's profit for most stalls in Jaffna. So we did not ask anyone to buy one.
Walk through a market in Jaffna and count the billing machines. You will not need both hands. Most stalls run on memory, a notebook, and a calculator that has lost the number three.
The usual explanation is that small shops are behind, or resistant, or waiting to be educated. That is not what is happening. A shopkeeper who can tell you the price of forty items from memory and calculate a five-item bill faster than you can open an app is not behind. They have simply run the numbers and decided that a machine costing more than a month's profit is not worth it. They are right.
The machine is not the product
A point-of-sale terminal is a small computer, a thermal printer, a card reader and a plastic shell. Almost none of that is the thing a shop actually needs. What a shop needs is: what did I sell, what did it come to, and did the customer pay. Those are three facts. They do not require a printer.
The printer exists because, historically, the only way to hand a customer a record was to print one. That constraint disappeared when every customer started carrying a screen. Most of the industry did not notice, because the machine was where the margin was.
The printer solved a problem that no longer exists. The industry kept it because the machine was where the money was.
What we removed, and what it cost us
PepulBill has no terminal, no printer, no card reader and no cash drawer. The shopkeeper's own phone is the counter. The customer's own phone is the receipt. A QR sticker on the table costs a few rupees to print once.
This is not free of trade-offs and we will not pretend otherwise. You need a working connection to take an order and make a bill. A shop that would rather have a machine humming on the counter is entitled to want one. And there is no card reader, so a shop that takes cards still needs its own arrangement for that.
What we get back is that a stall can start this afternoon with nothing to buy, nothing to install and nothing to maintain. That is the trade we made deliberately.
Hardware you did not buy cannot break
The quiet advantage of no hardware is not the purchase price. It is everything after it. A machine that fails on a festival Saturday is a shop that cannot bill. A printer out of paper at 8pm is a queue. A terminal three years old is a terminal somebody has to dispose of.
None of those are our customers' problems, because none of that equipment exists. The phone was already in their pocket, already charged, already being replaced on its own schedule for reasons that have nothing to do with us.