During August 2025, this developer enhanced the espressif/arduino-esp32 repository by implementing support for serving JavaScript ES modules through the WebServer component. Leveraging C++ and embedded systems expertise, the work introduced proper MIME type handling for .mjs files, enabling ESP32 devices to serve modular JavaScript code compatible with modern frontend tooling. This update allows developers to organize web applications more effectively and integrate contemporary web development workflows on embedded hardware. The approach focused on maintainability and interoperability, with all changes traceable through commit history. No bugs were reported or fixed during this period, reflecting a targeted feature-driven contribution.