Standalone lane repo
The lane require composer. Install it then run:
composer install
Next browse the pos/is4c-nf/install folder. You may be prompted to create pos/is4c-nf/ini.json and give the webserver write permission to it.
Plugins can be installed from plugins.core-pos.com using composer require. You can also install plugins in pos/is4c-nf/plugins/ by simply using git clone or even just editing locally. Plugins are considered separate entities from this repository and will be ignored regardless of how they're installed.