Nice approach. I chose a web app for the same portability reason: the child signs in once in a browser and KidScreen can be added to the Home Screen. That reduc

Nice approach. I chose a web app for the same portability reason: the child signs in once in a browser and KidScreen can be added to the Home Screen. That reduces platform-specific work, but it still does not guarantee that every device or TV browser supports YouTube embeds correctly.