I got myself an ESP32 with an integrated e-ink display. This little project shows when the next bus to the city leaves, and the current time. I get the live bus data from Skyss through the Entur integration in Home Assistant. Might have to get a few more of these to tinker with.
I had a small school project with the intention to scientifically show that busses in Oslo were late. A script was written to pull data from entur, and analyze/graph the numbers. We ended up having a 1tb long json file containing the data so it was quite a nightmare to analyze everything 😅.
One funny thing with entur, is that you can see the GPS locations of all scooters, busses, ferries etc so you can make a realtime map of them moving.