Draw.io is okay, but it would be even better if you could quickly generate diagrams with markup rather than having to drag, drop and connect every single node i

Draw.io is okay, but it would be even better if you could quickly generate diagrams with markup rather than having to drag, drop and connect every single node in your diagram. 9/10 times, I use paper and pencil because draw.io is too tedious. I would rather have a tool like OP's or a tool where I can take a snapshot of my hand-drawn chart, and have it automatically converted to a digital layout with some sort of ML.