In March 2026, Petr Kratochvil developed SegLCDLib, a Segment LCD Display Library, for the arduino/library-registry repository. This library enables direct control of segment LCD hardware within Arduino projects, expanding the registry’s hardware compatibility and supporting faster prototyping for users working with embedded systems. Petr designed and integrated the library using C and C++, applying expertise in Arduino development, embedded library design, and open-source repository management. The work focused on end-to-end feature delivery rather than bug fixes, demonstrating depth in both technical implementation and integration practices, and providing a valuable resource for developers requiring segment LCD display support in Arduino environments.