Implement hashish POS for Massachusetts dispensaries to take care of taxes, mark downs

https://cgsoft.immpc.org.mx/index.php/POS_Software_for_Massachusetts_Cannabis_Retailers:_A_Practical_Buyer%E2%80%99s_Guide

Implement cannabis POS for Massachusetts dispensaries to take care of taxes, coupon codes, and promotions effectively whilst conserving consistent data across every transaction.