Worked on the maximhq/bifrost repository to address a critical bug in Virtual Key Provider Configuration synchronization, focusing on backend development and database consistency. The solution ensured that key configuration flags, such as allow_all_keys and blacklisted_models, are now properly persisted and hashed across both the config.json source and the database. This update reduced configuration drift and improved security by aligning the in-code state with the source of truth. The work involved updating reconciliation logic, enhancing hash generation, and expanding regression tests using Go, with a focus on robust database synchronization and comprehensive end-to-end testing to prevent future mismatches.