I need to implement "smartphone login" in a free channel, which does not have Roku Pay. I thought of doing like the Youtube channel does, where it says "Enter with smartphone". Then you open the Youtube app on your smartphone and a warning appears "Sign in to Youtube on Roku..." and after I click on "connect", returning to the Youtube channel on Roku, it appears: "you are logged in as ..."
I searched a lot in various topics and didn't find anything that could help me. Could anyone point me to some material or solution?