Worked on the schneems/rails repository to address test reliability issues in Rails’ ActionController::Live by focusing on backend development and testing with Ruby and Ruby on Rails. Delivered a targeted bug fix that preserved Thread.current locals in the test environment, ensuring thread-local state was maintained during live streaming tests. This involved patching the test environment so new_controller_thread would yield the current thread, preventing unintended clearing of thread locals. Added dedicated test coverage to demonstrate the fix and improved the determinism of live streaming tests, reducing flakiness in CI and enhancing the maintainability of the Rails test suite overall.