Contributed to the home-assistant/core and mib1185/homeassistant-core repositories by developing and maintaining integrations for Home Assistant, with a focus on backend stability and maintainability. Enhanced the AsusWRT and Melissa components through targeted dependency upgrades, improved error handling, and streamlined data validation. Refactored constants and type hints to promote API consistency and code clarity, while updating tests to strengthen resilience against malformed data. Leveraged Python and JSON for backend development, dependency management, and integration work. Prioritized compatibility and long-term maintainability by aligning core libraries with upstream changes, supporting smoother downstream integrations and reducing incident risk across the Home Assistant ecosystem.