Is it possible to automate custom PCB edge design using Python scripting in KiCad?
Yes, automating custom PCB edge design is possible using Python scripting in KiCad. The given script shows how to add custom-shaped arcs to the PCB edges based on the locations of components:

```python
import pcbnew
from pcbnew import wxPoint, wxPointMM

def add_line_arc(start, center, angle=90, layer=pcbnew.Edge_Cuts):
    board = pcbnew.GetBoard()
    arc = pcbnew.PCB_SHAPE(board)
    arc.SetShape(pcbnew.SHAPE_T_ARC)
    arc.SetStart(start)
    arc.SetCenter(center)
    arc.SetArcAngleAndEnd(angle * 10, False)
    arc.SetLayer(layer)
    arc.SetWidth(int(0.1 * pcbnew.IU_PER_MM))
    board.Add(arc)

# Script for custom edge design
# ... (rest of the script)
add_line_arc(start, center)

pcbnew.Refresh()
```

This approach allows for the creation of unique PCB shapes, enhancing both the functionality and aesthetics of the board design.