Chirag Patni contributed to the facebook/buck2-prelude repository by implementing FoundationModels Framework Support, focusing on build system configuration using Starlark. He added version information for the FoundationModels framework to the Apple framework versions configuration, enabling the build system to accurately identify and utilize FoundationModels across various Apple operating systems. This targeted change addressed cross-OS compatibility issues and improved the reliability of downstream integrations. Chirag’s work demonstrated proficiency in Apple framework metadata management and Buck build configuration, delivering a focused solution that lays the groundwork for broader FoundationModels adoption. The contribution was concise, addressing a specific integration challenge with depth.