Worked on the tailscale/tailscale repository to enhance tailnet identity and usability by introducing a Tailnet Display Name feature and enabling display-name-based profile switching in the CLI. Focused on backend and CLI development using Go, the updates provided a user-friendly identifier for tailnets and streamlined profile management. The implementation included API design to support optional display names and ensured consistent behavior across both UI and CLI interfaces. These changes addressed confusion during tailnet selection, improved onboarding, and reduced support overhead by making tailnet identification more intuitive. The work laid a foundation for broader display-name-driven workflows and operational efficiency.