Shareable deck links for teachers and study groups

Teachers and study buddies keep rebuilding the same list by hand. That is wasted energy.

If someone curates a deck from a documentary, a beginner story, or a classroom theme, there should be a safe way to publish it and let another learner import a copy into their own account. Importing should duplicate, not transfer, so ownership stays clean.

The real value here is not just sharing content. It is helping a new learner skip the blank-screen moment and start with something already shaped for them.