Ultimaker Cura is a powerful LGPL-3.0 licensed STL-to-GCODE generator (https://github.com/Ultimaker/Cura) used for 3D printing. Additionally it is capable of enabling printing through USB on GNU Guix which is currently not possible as no guix package is able to recognize and send fabricating instructions to /dev/ttyUSB0 which is provided by the printers (note that the user has to be in `dialout` group in order to use the device). -- Jacob Hrbek, In support of ukraine sovereignty #supportUkraine