Areg worked on build system simplification for the modularml/mojo repository, focusing on improving the C++ toolchain configuration for WebAssembly and Emscripten targets. By removing wasm-specific arguments from the Bazel build system, Areg reduced complexity and minimized the risk of misconfiguration, making the build process more reliable and maintainable. This cleanup not only clarified target definitions but also supported better dependency hygiene, as reflected in progress on MOTR dependencies. The work demonstrated a strong grasp of build systems and C++ toolchain management, laying a foundation for faster iteration and easier onboarding for developers working with cross-target builds.