How much is your time worth? “Free” is the cost of the licensing but you take on the role of IT now (in addition to whatever your role in operating the bar is now). If you’re comfortable with being the IT department (managing the infrastructure, applying updates, running and testing backups, watching security notices, troubleshooting when things go wrong, providing user help desk support) then maybe.

I’m comfortable with all of that - I’d still pay for the license if I were using it for a business.