I was both surprised and pleased to see a flury of recent interest in my MyWind database on GitHub, there have been 18 forks in the last month!
MyWind is a re-engineering of the Northwind database provided with Microsoft Access for use with MariaDb and MySQL. Northwind was a sample database and tutorial schema for managing small business customers, orders, inventory, purchasing, suppliers, shipping, and employees.
I provided MyWind using the BSD license, meaning you are free to use MyWind as you please, including commercially, so long as you keep my copyright notice and accept my disclaimer of liability. Enjoy!