Mark Suca enhanced the keboola/storage-api-php-client repository by developing and modernizing security and API features for Snowflake and Reader Workspaces. He implemented automated RSA key pair authentication tests, improving security validation for workspace creation and connection. Mark also introduced public key rotation tests, enforced read-only restrictions, and extended the API to support new reader workspace use cases, updating documentation for clarity. His work included modernizing the test suite, consolidating legacy tests, and improving reliability through robust setup and teardown logic. Utilizing PHP, Docker, and SQL, Mark’s contributions deepened test coverage, strengthened security, and improved the maintainability of backend systems.