Worked on build system configuration and cross-compilation for the n0-computer/iroh and expo/expo repositories, focusing on stability and reliability improvements. Addressed ARM64 cross-build issues in n0-computer/iroh by explicitly configuring the aarch64-unknown-linux-gnu linker, ensuring the correct GCC linker was used and resolving build failures for ARM-based Linux targets. In expo/expo, resolved a packaging conflict by merging LICENSE files during the Expo Dev Client build process, maintaining license compliance and build integrity. Utilized Gradle and TOML to implement these solutions, demonstrating attention to detail in build workflows and contributing to smoother cross-platform development and continuous integration processes.