Amazon had their own set of products.
Links.
https://www.youtube.com/watch?v=H8lnrnKNIWU https://gitlab.com/metalx1000/amazon-fire-7-2019-notes-and-files https://gitlab.com/metalx1000/html5-slide-puzzle-game
7R: trategies are refactor, replatform, repurchase, rehost, relocate, retain, and retire.