I have had this tiny little ESP32 board with a tiny OLED display lying around for a while. So I decided to make a clock for my hobby room. I recruited Claude AI to help me out. It took an hour to simply resolve what the module actually is - an ESP32-C3 that responds to ESP32-C3 Dev Module in the Arduino IDE. Claude helped me with that; without that help, it could have taken several hours of tearing out my remaining hair.
Once that was resolved it took 3 or 4 iterations to fine-tune the screen layout. It gets the time via WiFi from an NTP server; it has automatic daylight saving, and it shows the date.
The first .INO file save is time-stamped 22:46. The final one 23:32. That's less than one hour to produce a useful program.
So now I've ordered a couple more of those modules. With luck the displays will be mounted straight!