How can I create curved boundaries for my PCB based on the arrangement of components using Python in KiCad?
Creating curved boundaries for a PCB based on component arrangement in KiCad can be done using Python scripting. The script provided demonstrates this by drawing arcs around specific components to form a custom boundary:

```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)

# Define arc positions based on component locations
# ... (rest of the script)
add_line_arc(start, center)

pcbnew.Refresh()
```

This method is ideal for PCBs that require custom shapes to fit specific enclosures or to achieve a particular aesthetic.