Nikhil worked on the zed-industries/zed repository, focusing on improving the ACP UI state synchronization for configuration options. He addressed a bug where the reasoning-effort picker could display stale values when switching models without changing configuration IDs. Using Rust and front end development skills, Nikhil updated the UI logic in crates/agent_ui/src/acp/config_options.rs to ensure selectors are rebuilt on every configuration update. This approach guarantees that the picker immediately reflects the selected model, reducing configuration errors and support overhead. The solution was validated across multiple models and documented in the release notes, demonstrating careful attention to reliability and maintainability.