Developed extended configuration support for the oraichain/OpenHands repository by introducing an ExtendedConfig class that enables management of arbitrary configuration settings without altering the core schema. Leveraging Python, Pydantic, and configuration management principles, the solution integrates ExtendedConfig into the existing AppConfig structure and supports TOML-based loading for external configuration files. This approach allows for safer and faster environment-specific tuning, reduces configuration drift, and provides a scalable foundation for future feature flags and deployment customization. The work focused on extensibility and maintainability, ensuring that new configuration parameters can be added flexibly while preserving the integrity of the core application schema.