During August 2025, H445 Xu focused on improving build system hygiene and dependency management across JetBrains/hirschgarten and prettier/angular-html-parser. Xu refactored Bazel build dependencies in hirschgarten, removing outdated references and updating modules to streamline the build process. In angular-html-parser, Xu pruned unused dependencies from BUILD.bazel files, reducing build surface area and enhancing CI reliability. The work emphasized Bazel expertise, build system management, and careful refactoring, with changes implemented in Java, Kotlin, and TypeScript environments. Xu’s contributions delivered robust infrastructure improvements, prioritizing maintainability and efficiency over feature delivery, and demonstrated a methodical approach to cross-repository build system optimization.