Nancy Wei contributed to two open source projects over a two-month period, focusing on front end development, API modularization, and localization using JavaScript and Vue.js. For the asyncapi/website repository, Nancy enabled Simplified Chinese language support by adding translation assets and updating configuration to allow seamless language switching, thereby improving accessibility for Chinese-speaking users. In the openfoodfacts/open-prices-frontend repository, Nancy refactored the API layer by splitting a monolithic file into three dedicated modules, enhancing maintainability and reducing coupling between data sources. Both features were delivered with clear documentation and collaborative workflows, demonstrating thoughtful engineering and attention to long-term project needs.