Like the summary says, a really simple (wall-mount) case for ESP8266 D1 mini and a 1.77 inch display.
Depending on your printer, you might have to adjust the print size. Actually, I found the print to be quite tight with our Mk3s, so scaling it up by a percent or two might be a good idea.
I'm using this with ESPHome and Home Assistant as a general info display in our hallway.
The author hasn't provided the model origin yet.