I'd say it's necessary to get proper image attribution on the cards if you'd like to avoid legal issues when using CC images. There was a discussion and a proof of concept for a federated query for author and license via structured commons (here), which is used at this project, however this is quite slow (for 200 items, you have way less here).
I'd say it's necessary to get proper image attribution on the cards if you'd like to avoid legal issues when using CC images. There was a discussion and a proof of concept for a federated query for author and license via structured commons (here), which is used at this project, however this is quite slow (for 200 items, you have way less here).