rgb-ascii-armor is both an executable binary that can be run, and a library that can be used in Rust programs.
Installing the armor executable
Assuming you have Rust/Cargo installed, run this command in a terminal:
cargo install rgb-ascii-armor
It will make the armor command available in your PATH if you've allowed the PATH to be modified when installing Rust. cargo uninstall rgb-ascii-armor uninstalls.
Adding armor library as a dependency
Run this command in a terminal, in your project's directory:
cargo add rgb-ascii-armor
To add it manually, edit your project's Cargo.toml file and add to the [dependencies] section:
rgb-ascii-armor = "1.0.1"
The armor library will be automatically available globally.
Read the armor library documentation.