Building configuration systems

Beyond building simple command-line interfaces, tyro.cli() is designed to scale to larger configuration systems such as those typically built with libraries like hydra.

For a live example, see nerfstudio. Notably, nerfstudio‘s configuration system is implemented entirely in Python, without YAML, and has full tab completion support in your terminal.

For overriding a dynamically loaded configuration object (typically a dataclass), the default= parameter of tyro.cli() can be used. If you have multiple default configuration objects and need to select one to pass in as a default – this might be a YAML file or config instance – an environment variable or manually parsed (via sys.argv) positional argument can be used.

For concrete examples, see our “Config Management” documentation.