Sadiqur Rahman developed optional op-test-sequencer support in the ethpandaops/optimism-package repository, enabling sequencer-controlled reorganization tests for Kona supervisor workflows within the Kurtosis devnet. By integrating Starlark and leveraging DevOps and Infrastructure as Code practices, Sadiqur ensured the new feature remained backward compatible with non-sequencer setups, allowing teams to validate both sequencing-enabled and traditional scenarios. The work expanded the test harness and CI coverage, improving deployment confidence and risk mitigation for Kona supervisor changes. Although the focus was on feature delivery rather than bug fixes, the solution provided a robust, incremental rollout path for enhanced test coverage and reliability.