How can I use the graphic library created by the user?
Is it compatible with other graphics programs?
Adobe illustrations, etc.
Can you use designs created in graphic programs such as svg and png?
Does it support printer drivers?
The best place to start is probably Michael Zöllner’s SVG plotter which allows you to directly plot an svg. There is also a plugin for Inkscape that can work well but you need to make sure your artwork is correctly positioned and sometimes it can draw a little slowly. There’s not a printer driver for Line-us at the moment.
Good luck, and let us know how you get on.