[bin_bash]

with npm:

    $ npm install foo # or
    $ npx foo

with github:

    Find repository
    Click latest release, downloads to ~/Downloads
    $ tar -xvzf ~/Downloads/some.tar.gz
    $ cp foo/bin/foo /usr/local/bin

[detaro]

As clearly laid out in the article, the rust equivalent to npm install is

    cargo install foo

The entire point of providing downloads is for people who don't have dev tools already installed.