Grzegorz Ferenc updated the documentation for the zephyrproject-rtos/trusted-firmware-m repository, focusing on improving developer onboarding and aligning with current Nordic Semiconductor device programming workflows. He transitioned all relevant README files from using nrfjprog to nrfutil, revising command-line examples and installation instructions to reflect the latest recommended practices. This work, carried out in reStructuredText (rst), consolidated guidance for Nordic tooling into a single, maintainable documentation surface. By emphasizing technical writing and documentation skills, Grzegorz reduced setup friction for new contributors and minimized future support needs, ensuring the documentation remains consistent and easier to update as tooling evolves.