For Install it

You'll need

• composer

Then, download and extract the zip file for download fontawesome

wget https://use.fontawesome.com/releases/v5.15.1/fontawesome-free-5.15.1-web.zip
unzip fontawesome-free-5.15.1-web.zip
rm fontawesome-free-5.15.1-web.zip
mv fontawesome-free-5.15.1-web fontawesome

And download composer packages

composer install