Briefly: It works.
Longer: I have an IS6000 (bed size = 610mm x 410mm) attached via parallel to USB cable to a Windows 10 computer. I set it up as a generic text printer. Inkcut installed smoothly by following instructions from this website. I send files in the HPGL format. I have also shared that printer on my network and have been able to send files from Inkcut on Linux (Fedora 39). I adjust travel and spin speed of the CNC's router tip using it's attached handset.
I have not tested Inkcut's ability to control travel speed. Sadly it is only possible to use old imperial units and not metric ones.
I don't know how to change the origin to the top left corner. This would be helpful as that is where the machine thinks home is.
When working with layers, or toolpaths specified by colour, The artwork moves around. It would be nice to have all elements stay in place relative to each other.