Worked on the servo/servo repository to address a targeted bug affecting Shadow DOM slot assignment, focusing on improving the correctness and stability of dynamic DOM updates for web components. The solution involved updating the slot-assignment logic in Rust to ensure that slot checks use the newly inserted node rather than a previous reference, which corrected slot mapping in shadow DOM contexts. This required precise code navigation and a deep understanding of DOM internals, particularly within components/script/dom/node.rs. The work demonstrated strong skills in Rust and front end development, resulting in reduced rendering glitches and more reliable web component behavior in dynamic scenarios.