Workshop "Smelting" into my app

I have users coming and logging in to a NextJS app I created. Within that NextJS app, I would love to embed (likely via iFrame) a workshop application for one “module.”

I am aware of the prerequisites here: https://www.palantir.com/docs/foundry/administration/embed-foundry-externally

Is there a way to embed the Workshop without requiring users to also log in to Foundry? Is there a way for their login into my application to suffice for the Foundry resources as well?

Trying to avoid having to make users “log in twice”