How to automate layer-based customizations in KiCad PCB projects using Python?
Automating layer-based customizations in KiCad PCB projects can be done using Python scripting. The script snippet provided illustrates how to define layer identifiers such as for the copper layers and silkscreen layers, which is the first step in automating layer-specific customizations:

```python
import pcbnew

front_copper = pcbnew.F_Cu
back_copper = pcbnew.B_Cu
front_silk = pcbnew.F_SilkS
back_silk = pcbnew.B_SilkS
```

Once these layers are defined, scripts can be developed to automatically add, modify, or manipulate features on these specific layers, enhancing the efficiency and precision of PCB design and layout.