Over a two-month period, Ilya Akulov contributed to both the biomejs/biome and ariakit/ariakit repositories, focusing on targeted feature development and optimization. In biomejs/biome, he enhanced the noUnusedVariables lint rule by introducing the ignoreRestSiblings option, updating configuration and core logic in TypeScript and Rust to reduce false positives in object destructuring scenarios. For ariakit/ariakit, he implemented a performance optimization for the Combobox component in React, using a hasInstalledGlobalEventListeners flag to prevent redundant global event listeners, which improved open performance by approximately 30%. His work demonstrated depth in code analysis, linter development, and component optimization.