Last weekend @redslashace and I learned how to use the viking embroidery machine. We used inkstitch plugin for Inkscape to digitize the design. https://inkstitch.org/
Used this tutorial for threading and bobbin winding https://youtu.be/wLw7UNcjQcM
Not sure how much of a class is needed but I plan on doing a step by step write up next time I use it.