Duncan Spani contributed to the GoogleCloudPlatform/cluster-toolkit repository by implementing ARM64 GPU Interface for Binaries (gIB) compatibility, focusing on support for gIB versions v1.1.1 and v1.1.0 tailored to the arm64 architecture. Using Terraform and YAML within a Kubernetes and cloud computing context, Duncan enabled versioned gIB support, which improved deployment flexibility and cluster provisioning on ARM64 hardware. The work aligned with the platform’s ARM64 roadmap, enhancing cross-architecture compatibility and platform readiness. By referencing explicit commits for traceability, Duncan ensured maintainability and auditability, demonstrating a focused approach to infrastructure as code and cloud-native engineering within a short timeframe.