During April 2025, Gomba enhanced the bootlin/training-materials repository by refining documentation for kernel cross-compiling workflows, TFTP lab setup, and BeagleBone Black boot procedures. Focusing on embedded systems and network configuration, Gomba clarified the export of variables, default kernel configurations, and provided detailed firewall guidance for TFTP protocol use. Using LaTeX for technical writing, Gomba improved the accuracy of hardware-specific instructions, such as correcting the BeagleBone Black USER button name and detailing autoboot prevention steps. These updates increased lab reproducibility and streamlined developer onboarding, reducing ambiguity and support overhead while ensuring that new labs could be set up with greater consistency.