Most retailers in Dhaka still run on paper and calculators. That's an opportunity, not a problem.
Walk into a random shop in Nawabpur or Bashundhara and you'll see it: a calculator, a notebook, and a wall of products. Most retailers in Dhaka don't use software because the existing options are either too expensive, too complex, or in English only. That's the gap Retailer POS fills. It's priced for a small shop (500tk/month), it's simple enough to learn in an afternoon, and it's built for the realities of Bangladeshi retail, offline mode, Bangla-friendly product names, bKash/Nagad payment tracking. The opportunity isn't to copy Western POS software, it's to build the right tool for the market that's been ignored.