Grzegorz Ferenc updated the documentation for the zephyrproject-rtos/trusted-firmware-m repository, focusing on streamlining developer onboarding for Nordic Semiconductor devices. He transitioned all relevant README files from using nrfjprog to nrfutil, providing updated command-line examples and installation instructions to reflect current Nordic programming workflows. Working primarily with reStructuredText and leveraging his technical writing and documentation skills, Grzegorz centralized and clarified guidance, reducing setup friction and aligning documentation with best practices. This targeted update improved maintainability and consistency across the documentation, addressing potential support issues and ensuring that developers have clear, up-to-date instructions for interacting with Nordic devices.