OctoPrint is the snappy web interface for your 3D printer
Raspberry PI distro for controlling 3D printers over the web
FW for ESP8266/ESP8285/ESP32 used with 3D printer
Monitorize number of pages printed by any printer on your network
Chromis POS, the new evolving face for your point of sale needs
Internet Cafe Software
A graphical user interface for ArgyllCMS
68xx modular emulator for Linux
Printer Counter is a powerful centralized printer manager