During December 2025, Hornta focused on improving linting reliability in the biomejs/biome repository by addressing a nuanced bug in the useConsistentArrowReturn rule. Working with JavaScript and Rust, Hornta corrected the autofix behavior for multiline arrow function expressions, ensuring that return statements are formatted correctly without introducing unnecessary newlines. This targeted fix reduced the need for manual formatting edits and minimized CI churn, directly enhancing code consistency for projects relying on this lint rule. The work demonstrated a careful approach to code quality, emphasizing stability and maintainability in automated linting workflows through precise, language-aware engineering solutions.