The real challenge was comparison. How do you compare two places that are thousands of miles apart without losing context? The answer sounds obvious: put two maps side by side. The implementation was… less obvious. Keeping two map views perfectly in sync turned out to be tricky. Zoom levels depend on viewport size, so splitting a screen immediately breaks the zoom level a map was at. Solving that took way more time than expected, but once it worked, I finally had my dream app. 4/8