[jjwiseman]

The creator gave a talk that has more details on how it was done: https://www.youtube.com/watch?v=gfODe92DzLU

IIRC he found a way to download streetview images without paying, and used the OCR built-in to macOS (which is really good).

[vincnetas]

TIL : Shortcuts.app has an "Extract Text from Image" action.