Worked on improving the reliability of the Arm backend in the pytorch/executorch repository by addressing a critical bug in the Vulkan environment setup for macOS. The solution involved backend development using bash and Python scripting to ensure that essential Vulkan environment variables are correctly exported, even when the emulation_layer command omits export lines. By deriving the deploy path from the installed pip package and parsing DYLD_LIBRARY_PATH from command-line output, the update enabled stable development and testing of Vulkan workloads on Arm-based macOS systems. This targeted fix enhanced CI stability and provided clear traceability through well-documented commit history.