Well this specific tool is by a company called Charm that has the mission statment of making the command line glamerous. They have been around for several years prior to the LLM craze.
They make a CLI framework for golang along with tools for it.
I came to reply this. They have been building very cool CLI projects and those projects end up composing new bigger projects. This is their last one (That I know of) which use most of the other projects they created before.
They didn't do it flashy for this project specifically (like Claude Code, which I don't think is flashy at all) but every single one of their other projects are like this.
also text UIs have always attempted a sense of flashiness? your BIOS, DOS UI's back in the day, etc. the OP sounds oddly jaded by it for no particular reason?
They make a CLI framework for golang along with tools for it.