Thanks, this is great example: what I’m trying to say for several messages is that the convergence decided by Apple is inevitable and will also benefit both the iPad and the Mac. As for your example, change of UI technology to use Metal would definitely benefit the Mac for instance. Dev of iPad and macOS go hand in hand whereas you seem to only point out the differences and gaps to fill in order to make an iPad version. Never ever have I written that there’s no effort, but imho I’m not sure you can afford missing the train by spending years of “consideration”.