Worked on stabilizing the Apalis iMX6 HDMI build path in the flipperdevices/u-boot repository by addressing a compile-time failure that occurred when HDMI was not configured. The solution involved conditionally compiling HDMI-related code based on configuration checks, specifically guarding against undefined references when CONFIG_VIDEO_IPUV3 was enabled but CONFIG_IMX_HDMI was not set. This approach improved build reliability across different configurations and enhanced CI success rates. The work focused on kernel development and embedded systems, utilizing C and build system expertise to ensure that future releases would avoid similar regressions through clear documentation and well-structured commit notes.