This should do...
or rather seems like the the game servers are suuuuper slow right now :/
Interview with Soejima Shigenori from Stella Deus The Complete Guide (translation) in Translations
Translated from the japanese complete guide (more)
I'm pleasantly surprised how well the Super Mario Maker 2 editor controls both in handheld and in TV mode. My expectation was that it would be real clunky but it's quite snappy to use when you've gotten used to the control scheme.