micwallace/wallacepos ? reverse-engineered prompt

Build me a modern web based point of sale app for a small business.

It should let staff ring up sales quickly, use a barcode scanner, print receipts, and work with a cash drawer. I also want an admin area where managers can set things up, manage staff, and see reports so they can track how the business is doing. Make it feel clean and easy to use, since this needs to work for both busy employees and owners who want a clear dashboard.

Include a simple installer flow for first time setup, plus the basic pages for admin, customer facing access, and anything needed for the POS to talk to a background service if that is part of the setup. If you need to check current docs or best practices for any dependency, look them up online and keep it compatible with a typical PHP web server setup.