During September 2025, Andrey Shapatin focused on improving the reliability of the full-text search test suite in the GreengageDB/greengage repository. He addressed persistent test flakiness by implementing a synchronization mechanism in C within postmaster.c and related test files, ensuring that injected faults were fully processed before subsequent commands executed. This approach reduced nondeterministic outcomes in the fts_segment_reset test, enabling more consistent and trustworthy test results. Andrey’s work leveraged his skills in debugging, fault injection, and testing, resulting in a more stable development environment and allowing for faster iteration and higher confidence in the full-text search subsystem.