Katarzyna Wojciechowska developed Heatshrink-based data compression capabilities for Phoenix-RTOS, focusing on both the phoenix-rtos-ports and phoenix-rtos-project repositories. She integrated the Heatshrink compression library into the build system, creating new build scripts and updating submodules to ensure seamless inclusion across platforms. Her work included adding IA32 build support and enabling configuration options for runtime compression, laying the foundation for future compression-enabled features. Using shell scripting and build system integration skills, Katarzyna improved build reproducibility and cross-platform readiness. The work demonstrated depth in system-level integration, addressing reproducibility and extensibility for data compression within the Phoenix-RTOS ecosystem.