At the moment plugin is ready to production. Just contact us to firstname.lastname@example.org and we will discuss the best recommendation solution for your bussines.
We can provide installation for you. But if your dev team want to test plugin https://github.com/kuzmany/mautic-recommender-bundle
update composer.json with private repository and access token
composer require kuzmany/mautic-recommender-bundle
php app/console mautic:plugins:reload
php app/console doctrine:schema:update --force
Then go to to plugins and enable Recommender. You should see Recommender in menu