(btw, off topic - but as our resident LinuxCNC expert, have you any experience of launching a python script on start-up of LinuxCNC to create a cyclic function that can grab the internal state data and drive the VCP HAL having created the necessary interface pins?, in particular I might be falling down this rabbit hole of a solution to get the DROs for the different G5x coordinate systems)... but learning LinuxCNC, VCP/GTK, HAL and Python at once is proving challenging)
Mike, do you have a translator for this I am certainly no expert. I have put the link into the appropriate section