What machines do you have if I may ask?
Wilcom, I suppose embroidery? I have a Janome MC500e and I've succesfully created stitchfiles with Inkscape+Inkstitch. MyEditor and 2stitch work via wine as well.
DesignSpace is cricut right? Maybe this site I stumbled on might help If all else fails, you could also try a vm with windows in lib-virt (virtmanager or Boxes), that way windows can be paused and always has a nice red X in the topright corner :-)
+1 for codeberg and github-alternatives. It is getting a bit scary how many projects seems to be caged in to github (and discord)