Zack Freedman developed an International Tax-Inclusive Pricing feature for the Shopify/worldwide repository, enabling accurate tax-inclusive pricing across 17 countries. He designed country-level tax-inclusive flags and product-level tax-inclusive settings, addressing the complexities of international pricing and regulatory compliance. Using Ruby and YAML, Zack focused on backend development and data management to ensure that pricing logic reflected local tax requirements. His work enhanced the platform’s internationalization capabilities and maintained clear version control, culminating in the release of version 1.23.0. The feature improved pricing accuracy for global transactions, supporting Shopify’s international sales growth while ensuring governance and traceability in code changes.