Worked on the jd-opensource/xllm repository to accelerate and stabilize NPU A3 integration by building a GitHub Actions CI workflow tailored for ARM64 self-hosted runners. The workflow automated builds and smoke tests, introducing PR gating and sensitive file checks to ensure only reviewed and safe changes triggered builds. Addressed intermittent checkout failures in the CI pipeline by increasing the checkout step timeout, reducing flaky runs and improving reliability. Leveraged Bash scripting, YAML configuration, and DevOps practices to align CI behavior with target hardware, ultimately enhancing feedback loops, build accuracy, and release velocity while maintaining a focus on code quality and security.