I built a hardware display, with an LCD and a WeMos Mini D1, so that I can see the upcoming tram departure times outside my house. I could use the website, or a phone app, but having the departure times always present right by my front door is a real game-changer.
The actual tram-stop does indeed have a display, but here in Finland it might be -20°C in the winter time so I don't want to walk to the stop earlier than necessary.
Sure waiting ten minutes won't kill me, but I'd much rather wait 1-2 minutes instead. Keep myself toasty-warm indoors.