OctOLED - remote display for OctoPrint

OctOLED is remote (WiFi on ESP8266) mini display (SSD1306 128x64 OLED) showing the status of OctoPrint. The motivation of the project was that the printer is behind me and I do not always have space on the screen to have an open card with the OctoPrint website to see the print progress. The solution works perfectly ingeniously, allowing easy access to the current progress bar and printer temperature status. I have designed a quite well-fitting casing for the whole which (as it seems to me) shoul