Worked on enhancing Windows build reliability and cross-platform ASN.1 support for SourceKit-LSP by addressing dependency and build automation challenges. In the swiftlang/sourcekit-lsp repository, resolved build failures by explicitly integrating the SwiftASN1 dependency within CMakeLists and updating BuildSystemIntegration, ensuring cryptographic signing workflows functioned correctly. Also enabled ASN.1 encoding and decoding on Windows by updating dependency management and build scripts, particularly for SwiftPM. Leveraged skills in CMake, Swift, and build system configuration to reduce build-time failures and support robust test execution. The work demonstrated a focused approach to cross-platform compatibility and dependency resolution within complex build environments.