Glad you like the UI!

Cobra and other CLI libraries, like oclif, can help you generate the skeleton of the CLI, stuff like subcommands, options, etc. (I'm in the process of writing the integration so you can generate a Fig completion spec the same way!)

The difference is that with Fig you can add richer completions as well. For instance, Fig's completion for `npm install` allows you to search across all npm packages: https://twitter.com/fig/status/1385401292193865731