follow the install instructions here.
you would need composer v1, as per Composer install errors - #5 by MadMart
when you extract the files in a folder, you should run
composer install --no-dev
follow the install instructions here.
you would need composer v1, as per Composer install errors - #5 by MadMart
when you extract the files in a folder, you should run
composer install --no-dev