A south-of-the-Limmat Migros shopper would use React and Vercel, but still use raw JS Date.

As someone who lives in Switzerland, but is not Swiss, I love this kind of thing. It’s an insight into an internal cultural understanding I didn’t get growing up and doesn’t really come up in the conversations I have day to day.

There's an entire ditch between the French-speaking and German-speaking parts of Switzerland, filled with Röschti to keep the two apart. True story!