Wow. This post covers a lot! As a non-synth/midi person I kinda bounced off and thought it wasn't for me but there's really so much cool stuff in here. The video was what caused me to scroll back and read more closely.
It seems like two apps if you include penbook (https://condukt.app/ being the main app). The title really describes the content but somehow undersold it for me.
Is there a midi device novices start with like a recorder for gradeschool students? The HiChord always looks so enticingly simple but I don't even know if that is the same type of device?