I am trying to kill my Excalidraw subscription because you also provide a whiteboard feature. The feature blocking me is that I can whip out a flow diagram via keyboard shortcuts insanely fast. I'm fairly confident they don't have a patent on this, so if you could rip the functionality I would greatly appreciate it. Examples flow is:

I create a box with text in it → I hit ESC → I hit "Command + →" and both an arrow and an identically sized box from what I just created appears. I hit enter and can begin typing. To then traverse inside of this flow diagram I hit "Option + {arrow in any direction}" and my selection moves to the box I would like to work from, either to hit enter to edit the text, or command enter to add yet another box via "command + {arrow in any direction}"

Rip it and ship it. I might be a niche user, but it saves me $ per month.