Worked on stabilizing database migrations for the element-hq/matrix-authentication-service repository, focusing on reducing deployment risks associated with concurrent index creation. Addressed a critical issue by updating migration scripts to include the IF NOT EXISTS clause in all CREATE INDEX CONCURRENTLY statements, which prevents potential deadlocks and errors during deployment. This change enhanced the reliability of database management processes, ensuring smoother migrations in production environments. Utilized SQL and database management skills to implement these improvements, with a particular emphasis on migration scripting. The work prioritized operational safety and robustness, directly contributing to more dependable and maintainable database deployment workflows for the project.