During August 2025, Paca Waca delivered iOS arm64 simulator native library build support for the Cysharp/YetAnotherHttpHandler repository. By implementing a new CI workflow job and updating the Xcode project target, Paca enabled automated builds and expanded test coverage for iOS arm64 simulators. This work leveraged skills in build automation, CI/CD, and cross-platform development, utilizing XML and YAML for configuration. The changes reduced QA cycle time and improved readiness for iOS environments by allowing earlier defect detection. Paca’s contribution addressed multi-architecture build challenges and positioned the project for broader iOS testing, reflecting a focused and technically sound engineering approach.