The barrier to entry in retail has never been lower than it is today. The easiest way to get started in retail is to set up an online store. You can build your own WordPress, Squarespace, Wix store in a matter of a few hours. Some online retailers skip building a website altogether and sell on marketplaces like Amazon, Etsy, and eBay that allow third-party sellers to list their products on their platform. If you end up in a traditional brick and mortar retail store, you will need at least a point-of-sale software package for the front register.”]
Source: https://gbhackers.com/software-requirements-for-retails-businesses-you-can-start-today/