To handle multiple currencies and languages in Vue Storefront, you can use the built-in support for internationalization. First, install the vue-i18n package to manage different languages. Then, set up language files and allow users to switch between them easily. For currencies, you can connect to a currency exchange API or adjust your backend (like Magento 2 VueJS) to support multiple currencies. https://webkul.com/vuestorefront-development-service/