Seongmin Lee developed and delivered the Tap Command PLC URL Flag feature for the bluesky-social/indigo repository, enabling users to specify a PLC registry URL directly through the tap command line interface. This enhancement was implemented in Go, focusing on robust CLI flag design and configuration-driven deployment patterns. By introducing the --plc-url flag, Seongmin improved the flexibility and automation of deployment workflows, allowing for more adaptable PLC integration. The work emphasized clean commit practices and traceability, with all changes tracked in a single, well-documented commit. Throughout the project, Seongmin demonstrated strong skills in Go programming and command line interface development.