Square - Square helps millions of sellers run their business-from secure credit card processing to point of sale solutions. Get paid faster with Square. Sign up today!
NethServer - NethServer is an operating system for Linux enthusiasts, designed for small offices and medium...
Lightspeed - retail and restaurant point-of-sale, ecommerce, and omnichannel solution
ClearOS - A very good alternative for Windows Server, for free
ITSCircle POS - ITSCircle POS is a point of sale solution for retail stores.
OpenMediaVault - OpenMediaVault is the next generation network attached storage (NAS) solution based on Debian Linux.