In recent versions of KiCad it’s pretty easy to import the edgecuts. Firstly create your edges in Inkscape, ensure that the design is a simple line drawing and save it as a DXF file. Then just ...

Designing in Inkscape, exporting to DXF, importing the DXF to proprietary software (which requires a USB security dongle to run), cleaning up any DXF import glitches, then finally cutting the job ...