Julia Kwaczynska delivered MISRA-C compliance for the Hardware Abstraction Layer in the phoenix-rtos/phoenix-rtos-kernel repository, focusing on embedded systems and low-level programming in C. She aligned HAL APIs with MISRA guidelines, enforcing strict type usage, correct memory barrier semantics, and compliant inline assembly across all kernel architectures. This work improved safety, portability, and maintainability, reducing the risk of undefined behavior in cross-platform builds. Julia’s changes enhanced static analysis readiness and code review rigor, supporting future certification audits. Her contribution addressed a critical bug, providing traceable, standards-aligned improvements that strengthen the foundation for multi-architecture development and certification efforts.