ARM based systems are very prevalent in technology today. We have Raspberry PI, Chromebook, Surface X, and Apple will be transitioning in the future. I for one tend to have my Arm based Chromebook with me almost constantly where I only have my Intel Macbook with me when I’m home or on a extended trip.
I’ve seen mention in the discord that Arm is being looked at towards/after the 1.0 release. I’m not sure why building a new architecture should need to wait that long. At least on the linux side cross-compiling should be straight forward and is a one time setup.