Drag to canvas · Hover node for × to delete · Draw from handle to connect
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Design your architecture
Drag components from the left panel · Connect them by drawing from a node handle · Hit Start Simulation to validate
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.
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DropboxGoogleBox
Design a file synchronization service like Dropbox. Users upload files from desktop clients, which sync across all their devices. Support 100M users, files up to 5GB, delta sync (only upload changed blocks), and offline editing.