Build native CLI tools in Fitz with @command, no library to install. Help auto-generated, type-coerced flags, positional args by convention, native binary out the door. The same language that powers HTTP services builds your scripts.
Why a CLI builder in the language?
Most CLI work in Python lives in typer, click, or argparse. They're all decent libraries; typer in particular is delightful. The Rust answer is clap. The Go answer is cobra or urfave/cli. The Node answer is commander.js or yargs. Every language has a CLI library. Every one of them is a library.
A library is fine until you remember that:
The library's conventions are imposed on the rest of your code (decorators, factory objects, builder DSLs).
