You can build a polished, interactive command-line app in Go by pairing Cobra for command structure with Bubble Tea for the terminal UI. Cobra covers argument parsing, subcommands, flags, and auto-generated shell completions. Bubble Tea adds spinners, tables, text inputs, progress bars, and keyboard navigation on top. The result is one static binary. It runs in scripts and CI when called plainly, and shows a full terminal interface when a person runs it.