Multiple projects posted if you search my practical project involves polling a remote API to display tram departures

https://steve.fi/Hardware/helsinki-tram-times/

But you also find out about constraints too. Driving an epaper display without running out of RAM was a fun challenge:

https://steve.fi/Hardware/d1-epaper/

If you search for "ESP8266" (especially on a website like hackaday.com) you will see a lot of projects using these boards or very similar ones. You can also look up the ESP32, which is the big brother of the ESP-8266 with Bluetooth LE, more CPUs, and some other cool features.