Developed an automatic shell detection feature for the derailed/k9s repository, targeting Windows NanoServer containers to streamline user experience and compatibility. The solution leveraged Go for backend development, implementing logic that checks for PowerShell availability and defaults to cmd.exe when necessary. This approach used the command pattern cmd /c where powershell >nul 2>&1 && powershell || cmd to ensure robust detection across both Windows Server Core and NanoServer environments. The work enhanced cross-OS portability and reduced manual intervention for developers and automation pipelines. Comprehensive documentation and integration steps were included to support future Windows container scenarios and prevent regression.