The Prusa Mini+ is a 3D printer that uses the open-source Prusa Slic3r software. This software is based on the popular Cura slicer and offers various slicing and printing options. It also supports multi-material printers, allowing users to print with multiple colors or materials. In addition, the Prusa Mini+ comes with a built-in camera and web interface, making it easy to control and monitor your prints from anywhere.