nu_plugin_selector is both an executable binary that can be run, and a library that can be used in Rust programs.
Installing the command-line executable
Assuming you have Rust/Cargo installed, run this command in a terminal:
cargo install nu_plugin_selector
It will make the nu_plugin_selector command available in your PATH if you've allowed the PATH to be modified when installing Rust. cargo uninstall nu_plugin_selector uninstalls.
Adding nu_plugin_selector library as a dependency
Run this command in a terminal, in your project's directory:
cargo add nu_plugin_selector
To add it manually, edit your project's Cargo.toml file and add to the [dependencies] section:
nu_plugin_selector = "0.44.0"
The nu_plugin_selector library will be automatically available globally.
Read the nu_plugin_selector library documentation.