Interview Mode works best on a desktop. The whiteboard canvas needs space.
Prompt
Design WhatsApp
Real-time 1:1 and group messaging. Messages must be delivered with sub-second latency to online users, and reliably to offline users. Plan for 2B users globally.
Press enter or space to select a node.You can then use the arrow keys to move the node around. Press delete to remove it and escape to cancel.
Press enter or space to select an edge. You can then press delete to remove it or escape to cancel.