Carsten Graf enhanced the music-assistant/server repository by implementing Alexa language normalization and adding Portuguese audio command support. He refactored the Alexa provider’s language validation to use predefined options, which streamlined validation logic and improved consistency across the backend. Using Python and focusing on API integration, Carsten addressed syntax errors and missing imports in the provider configuration, resulting in more stable startup behavior. He also improved code maintainability by applying pre-commit hygiene fixes, such as correcting whitespace and spelling issues. The work deepened accessibility for Portuguese-speaking users and reduced future maintenance overhead, though it was limited in scope to a single feature.