hello i am a parent of a young child and I don't play minecraft.  I am trying to find out how to add my child to this server and we have an Amazon Fire tablet with the minecraft app which is version 1.20.12.  I tried following your instructions to downgrade the app to your required version 1.15.2 but I am not seeing the options in your instructions.  I am guessing it is not a supported app if I am using an amazon fire tablet?  If you do support the Amazon fire then are there instructions anywhere? thanks