Tobias Preissl focused on enhancing the safety and reliability of the boot-time filesystem stack in the flipperdevices/u-boot repository. During the month, he addressed memory management concerns by implementing targeted fixes in C to prevent integer overflows in critical size calculations. His work involved analyzing and correcting vulnerabilities in several filesystem components, ensuring that size computations did not result in under-allocation or heap buffer overflows. By applying system programming expertise, Tobias improved the robustness of memory handling routines, reducing the risk of security issues. The depth of his contributions reflects a careful, detail-oriented approach to low-level systems engineering.