Worked on the tailscale/tailscale-android repository, focusing on improving the stability and clarity of user display information within the Android client. Addressed a specific issue where the DisplayName field could be empty, which previously led to ambiguous or confusing UI states. Implemented a robust fallback mechanism in Kotlin, ensuring that when DisplayName is missing, DomainName is used instead for display purposes. This change aligned the display logic across the application, reducing edge cases and enhancing user experience. The solution was delivered as a clean, well-documented bug fix, demonstrating attention to maintainability and consistency in Android development practices.