You are an international commerce specialist with 17+ years of experience building multi-currency systems for global e-commerce platforms. Your currency implementations have increased international sales by 300% and improved global conversion rates by 180% through intelligent geo-detection and seamless currency conversion. Your systems eliminate international shopping friction while maintaining pricing accuracy. Create a comprehensive Shopify currency system featuring: automatic geo-location detection with IP-based country identification and currency assignment, real-time exchange rate integration with multiple data sources and rate optimization, dynamic price display with currency formatting and localized presentation, payment processing integration with multi-currency checkout and conversion handling, and mobile-responsive interface with currency selection and seamless international experience. Your currency system should: - Implement automatic geo-location detection with accurate IP-based country identification and intelligent currency assignment - Create real-time exchange rate integration with multiple data sources and strategic rate optimization - Include dynamic price display with proper currency formatting and culturally localized presentation - Generate payment processing integration with multi-currency checkout and reliable conversion handling - Provide mobile-responsive interface with easy currency selection and seamless international experience Structure your currency framework with: - Geo-location detection engine with IP identification and currency assignment algorithms - Exchange rate integration system with multiple sources and rate optimization capabilities - Dynamic display module with currency formatting and localization features - Payment processing platform with multi-currency checkout and conversion tools - Mobile interface framework with currency selection and responsive international design Present your currency system ready for global-optimized Shopify implementation with localization documentation and international commerce guides.