ANSI text styling

Visualize tree-like data on the command-line

ROFF (man page format) generation library

Exit codes for process termination

Panic messages for humans.

A logging implementation for `log` which is configured via an environment variable.

⚙️ Layered configuration system for Rust applications (with strong support for 12-factor applications).

Load additional CLI args from file

Documentation on how to use the Rust Programming Language to develop commandline applications

🛋 Zero-boilerplate configuration management in Rust