Xavier Stouder focused on targeted bug fixes across two major repositories, biomejs/biome and liquibase/liquibase, over a two-month period. In biomejs/biome, Xavier improved lint reliability for decorated async functions by refactoring the MissingAwaitVisitor logic and enhancing test coverage, using JavaScript analysis and Rust programming to reduce false positives in static analysis. In liquibase/liquibase, Xavier addressed schema-qualified foreign key references by updating Groovy and Java code to ensure correct schema prefixing and added cross-database tests for robust schema management. The work demonstrated depth in debugging and testing, resulting in more reliable linting and database schema evolution workflows.