Worked on the tailscale/tailscale repository to enhance reliability for container deployments in environments without Kubernetes. Addressed a critical stability issue by implementing robust error handling in the container boot workflow, specifically guarding against nil dereference when the kubeClient is uninitialized. This approach ensured that the storeHTTPSEndpoint method is only called if the Kubernetes state store is properly configured, preventing potential crashes in non-Kubernetes scenarios. The work focused on backend development using Go, with careful attention to error handling and Kubernetes integration. The solution improved deployment stability and reliability for users operating outside of Kubernetes-based infrastructure, reflecting thoughtful engineering depth.