Offline Foreman proxy

I would like to use foreman in an environment, where I have one central server, but can have kind of child-servers on a different system where I can use it to install and deploy ansible even while being offline.
Are there such concepts/ has anyone tried that before ?

Best regards, Peter

yes, you can run Foreman in a disconnected environment.
You can use Foreman+Katello and Ansible for downloading and managing the content and then synchronizing it to the Smart Proxy.