There was once a time when tools like Microsoft Access and FileMaker Pro were common. These were a database and custom GUI designed using a drag and drop editor. I don't know whether these apps ever had network server capability or if they were always offline or why they died out. It was a bit before my time
It's pretty cool but I'm surprised there wasn't confusion among the 2s (2 & 200, 20 & 2000) all the other symbols had enough to make it clear which side they're on, but the closer the 2-notch gets to the centre, the more ambiguous it gets. Could even be confused with a 1 if you're not careful